Securing OAuth 2.0 Authorization server using LDAP authentication

Securing OAuth 2.0 Authorization server using LDAP authentication - spring-boot

Implemented OAuth 2.0 implementation using the below reference and was able to make it.
source code
https://github.com/Baeldung/spring-security-oauth
Tutorial
http://www.baeldung.com/rest-api-spring-oauth2-angularjs
To secure our application more, replaced auth.inMemoryAuthentication() with auth.ldapAuthentication() using embedded ldap by referring to the
https://spring.io/guides/gs/authenticating-ldap/
and our WebSecurityConfigurerAdapter looks like
#Autowired
public void globalUserDetails(final AuthenticationManagerBuilder auth) throws Exception {
auth
.ldapAuthentication()
.userDnPatterns("uid={0},ou=people")
.groupSearchBase("ou=groups")
.contextSource(contextSource())
.passwordCompare()
.passwordEncoder(new LdapShaPasswordEncoder())
.passwordAttribute("userPassword");
}
Now authentication is being successful but throwing the below error message on UI.
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<oauth>
<error_description>
Invalid access token: 51a2f56a-7db6-429e-a180-6b872a2ec521
</error_description>
<error>invalid_token</error>
</oauth>
Also find the stack trace below
2017-08-06 22:45:42.508 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL query
2017-08-06 22:45:42.511 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL statement [select token_id, token from oauth_access_token where token_id = ?]
2017-08-06 22:45:42.531 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.datasource.DataSourceUtils : Fetching JDBC Connection from DataSource
2017-08-06 22:45:42.532 DEBUG 13744 --- [nio-8082-exec-2] o.s.j.d.DriverManagerDataSource : Creating new JDBC DriverManager Connection to [jdbc:mysql://localhost:3306/auth]
2017-08-06 22:45:43.156 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.datasource.DataSourceUtils : Returning JDBC Connection to DataSource
2017-08-06 22:45:43.166 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL query
2017-08-06 22:45:43.166 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL statement [select token_id, authentication from oauth_access_token where token_id = ?]
2017-08-06 22:45:43.166 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.datasource.DataSourceUtils : Fetching JDBC Connection from DataSource
2017-08-06 22:45:43.166 DEBUG 13744 --- [nio-8082-exec-2] o.s.j.d.DriverManagerDataSource : Creating new JDBC DriverManager Connection to [jdbc:mysql://localhost:3306/auth]
2017-08-06 22:45:43.185 DEBUG 13744 --- [nio-8082-exec-2] o.a.c.loader.WebappClassLoaderBase : findClass(org.springframework.security.ldap.userdetails.LdapUserDetailsImpl)
2017-08-06 22:45:43.186 DEBUG 13744 --- [nio-8082-exec-2] o.a.c.loader.WebappClassLoaderBase : --> Returning ClassNotFoundException
2017-08-06 22:45:43.187 DEBUG 13744 --- [nio-8082-exec-2] o.a.c.loader.WebappClassLoaderBase : findClass(org.springframework.security.ldap.userdetails$LdapUserDetailsImpl)
2017-08-06 22:45:43.187 DEBUG 13744 --- [nio-8082-exec-2] o.a.c.loader.WebappClassLoaderBase : --> Returning ClassNotFoundException
2017-08-06 22:45:43.188 DEBUG 13744 --- [nio-8082-exec-2] o.s.jdbc.datasource.DataSourceUtils : Returning JDBC Connection to DataSource
2017-08-06 22:45:43.193 WARN 13744 --- [nio-8082-exec-2] o.s.s.o.p.token.store.JdbcTokenStore : Failed to deserialize authentication for 51a2f56a-7db6-429e-a180-6b872a2ec521
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: org.springframework.security.ldap.userdetails.LdapUserDetailsImpl
at org.springframework.security.oauth2.common.util.SerializationUtils.deserialize(SerializationUtils.java:50) ~[spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.store.JdbcTokenStore.deserializeAuthentication(JdbcTokenStore.java:405) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.store.JdbcTokenStore$3.mapRow(JdbcTokenStore.java:198) ~[spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.store.JdbcTokenStore$3.mapRow(JdbcTokenStore.java:196) ~[spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:697) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:684) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:716) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:726) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:800) ~[spring-jdbc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.security.oauth2.provider.token.store.JdbcTokenStore.readAuthentication(JdbcTokenStore.java:195) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.store.JdbcTokenStore.readAuthentication(JdbcTokenStore.java:188) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.DefaultTokenServices.loadAuthentication(DefaultTokenServices.java:238) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.token.DefaultTokenServices$$FastClassBySpringCGLIB$$5a1f25c.invoke(<generated>) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:669) [spring-aop-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.security.oauth2.provider.token.DefaultTokenServices$$EnhancerBySpringCGLIB$$b4290941.loadAuthentication(<generated>) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationManager.authenticate(OAuth2AuthenticationManager.java:83) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:150) [spring-security-oauth2-2.0.14.RELEASE.jar:na]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at com.tcs.springhadoop.ResourceApplication.CorsFilter.doFilter(CorsFilter.java:35) [classes/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.15.jar:8.5.15]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_141]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_141]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.15.jar:8.5.15]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_141]
Caused by: java.lang.ClassNotFoundException: org.springframework.security.ldap.userdetails.LdapUserDetailsImpl
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedWebappClassLoader.loadClass(TomcatEmbeddedWebappClassLoader.java:52) ~[spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119) ~[tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.util.ClassUtils.forName(ClassUtils.java:250) ~[spring-core-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.core.ConfigurableObjectInputStream.resolveClass(ConfigurableObjectInputStream.java:74) ~[spring-core-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readClassDesc(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readObject0(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.defaultReadFields(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readSerialData(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readObject0(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.defaultReadFields(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readSerialData(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readObject0(Unknown Source) ~[na:1.8.0_141]
at java.io.ObjectInputStream.readObject(Unknown Source) ~[na:1.8.0_141]
at org.springframework.security.oauth2.common.util.SerializationUtils.deserialize(SerializationUtils.java:43) ~[spring-security-oauth2-2.0.14.RELEASE.jar:na]
2017-08-06 22:56:32.188 DEBUG 13744 --- [nio-8082-exec-3] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL update
2017-08-06 22:56:32.188 DEBUG 13744 --- [nio-8082-exec-3] o.s.jdbc.core.JdbcTemplate : Executing prepared SQL statement [delete from oauth_access_token where token_id = ?]
2017-08-06 22:56:32.188 DEBUG 13744 --- [nio-8082-exec-3] o.s.jdbc.datasource.DataSourceUtils : Fetching JDBC Connection from DataSource
2017-08-06 22:56:32.188 DEBUG 13744 --- [nio-8082-exec-3] o.s.j.d.DriverManagerDataSource : Creating new JDBC DriverManager Connection to [jdbc:mysql://localhost:3306/auth]
2017-08-06 22:56:32.196 DEBUG 13744 --- [nio-8082-exec-3] o.s.jdbc.core.JdbcTemplate : SQL update affected 1 rows
2017-08-06 22:56:32.200 DEBUG 13744 --- [nio-8082-exec-3] o.s.jdbc.datasource.DataSourceUtils : Returning JDBC Connection to DataSource
2017-08-06 22:56:32.200 DEBUG 13744 --- [nio-8082-exec-3] p.a.OAuth2AuthenticationProcessingFilter : Authentication request failed: error="invalid_token", error_description="Invalid access token: f8c3ebb0-5eb0-4170-9437-4d67e2192f37"
2017-08-06 22:56:32.200 DEBUG 13744 --- [nio-8082-exec-3] w.c.HttpSessionSecurityContextRepository : SecurityContext is empty or contents are anonymous - context will not be stored in HttpSession.
2017-08-06 22:56:32.200 DEBUG 13744 --- [nio-8082-exec-3] s.s.o.p.e.DefaultOAuth2ExceptionRenderer : Written [error="invalid_token", error_description="Invalid access token: f8c3ebb0-5eb0-4170-9437-4d67e2192f37"] as "application/xhtml+xml" using [org.springframework.security.oauth2.http.converter.jaxb.JaxbOAuth2ExceptionMessageConverter#47716661]
2017-08-06 22:56:32.200 DEBUG 13744 --- [nio-8082-exec-3] s.s.w.c.SecurityContextPersistenceFilter : SecurityContextHolder now cleared, as request processing completed
... 72 common frames omitted
Error trace followed by deleting the access token from database. Please guide us to fix the issue. Thanks in advance

Make sure you have the following in your pom.xml
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-ldap</artifactId>
<version>3.1.0.RELEASE</version>
</dependency>
Change to your version of spring.

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at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.uniApplyNow(CompletableFuture.java:683) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:658) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:2165) ~[na:na]
at com.microsoft.bot.connector.authentication.JwtTokenValidation.authenticateRequest(JwtTokenValidation.java:66) ~[bot-connector-4.6.0-preview6.jar:4.6.0-preview6]
at com.microsoft.bot.builder.BotFrameworkAdapter.processActivity(BotFrameworkAdapter.java:433) ~[bot-builder-4.6.0-preview6.jar:4.6.0-preview6]
at com.microsoft.bot.integration.BotFrameworkHttpAdapter.processIncomingActivity(BotFrameworkHttpAdapter.java:72) ~[bot-integration-core-4.6.0-preview6.jar:4.6.0-preview6]
at com.microsoft.bot.integration.spring.BotController.incoming(BotController.java:84) ~[bot-integration-spring-4.6.0-preview6.jar:4.6.0-preview6]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) ~[tomcat-embed-core-9.0.37.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.37.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.37.jar:9.0.37]
at java.base/java.lang.Thread.run(Thread.java:830) ~[na:na]
Caused by: com.microsoft.bot.connector.authentication.AuthenticationException: No Auth Header. Auth is required.
at com.microsoft.bot.connector.authentication.JwtTokenValidation.lambda$authenticateRequest$0(JwtTokenValidation.java:75) ~[bot-connector-4.6.0-preview6.jar:4.6.0-preview6]
at java.base/java.util.concurrent.CompletableFuture.uniApplyNow(CompletableFuture.java:680) ~[na:na]
... 56 common frames omitted
Does anyone know how to solve this issue?

By reading the manual carefully and doing the following steps I achieved to connect the bot with the Emulator.
Configure the emulator for authentication
If a bot requires authentication, displaying a login dialog, you must configure the emulator as shown below.
Using sign-in verification code
Start the emulator.
In the emulator, click the gear icon in the bottom left, or the Emulator Settings tab in the upper right.
Check the box by Use a sign-in verification code for OAuthCards.
Check the box by Bypass ngrok for local address
Click the Save button.
https://learn.microsoft.com/en-us/azure/bot-service/bot-service-debug-emulator?view=azure-bot-service-4.0&tabs=csharp#configure-the-emulator-for-authentication

Kafka Schema Registry getting error Unexpected character ('<' (code 60)): expected a valid value (number, String, array, object, 'true', 'false')

I am trying to integrate SpringBoot Application with Kafka Schema Registry. I have created a kafkaPrducer which will send message to Kafka Topic after validating to Schema Registry:
public class Producer {
#Value("${topic.name}")
private final String TOPIC;
private final KafkaTemplate<Integer, Data> kafkaTemplate;
#Autowired
public Producer(KafkaTemplate<Integer, Data> kafkaTemplate) {
this.kafkaTemplate = kafkaTemplate;
}
public void sendTestEvent(Data data) throws Exception {
System.out.println("started");
Integer key = data.getTestEventId();
this.kafkaTemplate.send(this.TOPIC,key,data);
}
My application.properties file
server.port=8084
topic.name=test-topic
server.servlet.context-path=/api/v1
spring.application.name=kafkatest
spring.kafka.bootstrap-servers=*************.com:9093
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.IntegerSerializer
spring.kafka.producer.value-serializer=io.confluent.kafka.serializers.KafkaAvroSerializer
spring.kafka.jaas.enabled=true
spring.kafka.properties.security.protocol= SASL_SSL
spring.kafka.properties.security.krb5.config = file:/etc/krb5.conf
spring.kafka.properties.sasl.mechanism = GSSAPI
spring.kafka.properties.sasl.kerberos.service.name= kafka
spring.kafka.properties.sasl.jaas.config = com.sun.security.auth.module.Krb5LoginModule required
useTicketCache=false serviceName="kafka" storeKey=true principal="***************" useKeyTab=true
keyTab="/home/api/config/kafkaclient.keytab";
spring.kafka.ssl.trust-store-location= file:/home/api/config/truststore.p12
spring.kafka.ssl.trust-store-password=*********************
spring.kafka.ssl.trust-store-type= PKCS12
spring.kafka.basic.auth.credentials.source=USER_INFO
spring.kafka.basic.auth.user.info=<username>:<password>
spring.kafka.schema.registry.url=https://schema-registry-*****************/subjects/test-
topic/versions/latest
But i am getting error:
io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Unexpected character ('<' (code 60)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: (sun.net.www.protocol.http.HttpURLConnection$HttpInputStream); line: 1, column: 2]; error code: 50005
> 2020-06-28 22:24:59.047 INFO 2019 --- [nio-8084-exec-1] o.a.k.c.s.authenticator.AbstractLogin : Successfully logged in.
2020-06-28 22:24:59.054 INFO 2019 --- [ha*********] o.a.k.c.security.kerberos.KerberosLogin : [Principal=ha*********]: TGT refresh thread started.
2020-06-28 22:24:59.065 INFO 2019 --- [ha**********] o.a.k.c.security.kerberos.KerberosLogin : [Principal=ha*********]: TGT valid starting at: Sun Jun 28 22:25:07 IST 2020
2020-06-28 22:24:59.067 INFO 2019 --- [ha*********] o.a.k.c.security.kerberos.KerberosLogin : [Principal=ha*********]: TGT expires: Mon Jun 29 08:25:07 IST 2020
2020-06-28 22:24:59.072 INFO 2019 --- [ha*********] o.a.k.c.security.kerberos.KerberosLogin : [Principal=ha*********]: TGT refresh sleeping until: Mon Jun 29 06:28:47 IST 2020
2020-06-28 22:24:59.307 WARN 2019 --- [nio-8084-exec-1] o.a.k.clients.producer.ProducerConfig : The configuration 'security.krb5.config' was supplied but isn't a known config.
2020-06-28 22:24:59.334 INFO 2019 --- [nio-8084-exec-1] o.a.kafka.common.utils.AppInfoParser : Kafka version : 2.0.1
2020-06-28 22:24:59.340 INFO 2019 --- [nio-8084-exec-1] o.a.kafka.common.utils.AppInfoParser : Kafka commitId : fa14************
2020-06-28 22:25:03.041 INFO 2019 --- [ad | producer-1] org.apache.kafka.clients.Metadata : Cluster ID: GlUYY***********
2020-06-28 22:25:04.994 ERROR 2019 --- [nio-8084-exec-1] o.a.c.c.C.[.[.[.[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [/api/v1] threw exception [Request processing failed; nested exception is org.apache.kafka.common.errors.SerializationException: Error registering Avro schema: {"type":"record","name":"Event","namespace":"com.*******.kafka.avro.event.sample","fields":[{"name":"event_envelope","type":{"type":"record","name":"EventEnvelope","fields":[{"name":"data","type":{"type":"record","name":"Data","fields":[{"name":"testEventId","type":"int"},{"name":"test","type":{"type":"string","avro.java.string":"String"}}]},"default":{}}]}}]}] with root cause
io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Unexpected character ('<' (code 60)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: (sun.net.www.protocol.http.HttpURLConnection$HttpInputStream); line: 1, column: 2]; error code: 50005
at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:230) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:256) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:356) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:348) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:334) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.registerAndGetId(CachedSchemaRegistryClient.java:168) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:222) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:198) ~[kafka-schema-registry-client-5.3.1.jar!/:na]
at io.confluent.kafka.serializers.AbstractKafkaAvroSerializer.serializeImpl(AbstractKafkaAvroSerializer.java:70) ~[kafka-avro-serializer-5.3.0.jar!/:na]
at io.confluent.kafka.serializers.KafkaAvroSerializer.serialize(KafkaAvroSerializer.java:53) ~[kafka-avro-serializer-5.3.0.jar!/:na]
at org.apache.kafka.common.serialization.ExtendedSerializer$Wrapper.serialize(ExtendedSerializer.java:65) ~[kafka-clients-2.0.1.jar!/:na]
at org.apache.kafka.common.serialization.ExtendedSerializer$Wrapper.serialize(ExtendedSerializer.java:55) ~[kafka-clients-2.0.1.jar!/:na]
at org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:841) ~[kafka-clients-2.0.1.jar!/:na]
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:803) ~[kafka-clients-2.0.1.jar!/:na]
at org.springframework.kafka.core.DefaultKafkaProducerFactory$CloseSafeProducer.send(DefaultKafkaProducerFactory.java:444) ~[spring-kafka-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.kafka.core.KafkaTemplate.doSend(KafkaTemplate.java:381) ~[spring-kafka-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.kafka.core.KafkaTemplate.send(KafkaTemplate.java:199) ~[spring-kafka-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at io.confluent.developer.spring.avro.Producer.sendTestEvent(Producer.java:58) ~[classes!/:0.0.1-SNAPSHOT]
at io.confluent.developer.spring.avro.KafkaController.sendMessageToKafkaTopic(KafkaController.java:31) ~[classes!/:0.0.1-SNAPSHOT]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) ~[spring-webmvc-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.7.RELEASE.jar!/:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1747) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.19.jar!/:9.0.19]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Since I am using https schema registry do I have to set any other properties in application.properties like keystore and trustore certificate?

This is because schema-registry is down. You need to verify in logs what's the exact issue.
Command to see schema-registry logs:
confluent local services schema-registry log -f (-f make it live)
In my case, I had a conflict port usage(another tool was using 8081). Logs talk, just need to hear it.

I am now able to post a message to kafka in Avro format after validating through schema registary.
The mistake which I was making is related to subject name of the schema. By default Avro schema uses TopicNameStrategy which means it will look for subject name which look like this topic name-value. If it doesn't find it will throwing error not able to retrieve schema because schema is not present with that subject name.
I changed the subject name of schema to test-topic-value and able to post message onto test-topic.
I hope this will help and save someone time.

I encountered the same error and it seems in my case the schema registry did not accept schemas pushed by producers and consumers.
I registered the schema during the CI stage and I set the following property in my code: auto.register.schema=false.

<!-- https://mvnrepository.com/artifact/io.confluent/kafka-avro-serializer -->
<dependency>
<groupId>io.confluent</groupId>
<artifactId>kafka-avro-serializer</artifactId>
<version>5.3.0</version>
</dependency>

Keycloak Spring Multitenant Null Pointer Exception

Source Code from : https://github.com/ineat/spring-keycloak-multitenant
Started Keycloak and added realms as instructed in the readme file.
Updated the Keycloak Json codes at respective places.
Started Spring Project.
Got the Following Exceptions upon calling "http://localhost:8081/multitenant" :
2019-03-20 18:34:28.195 ERROR 25640 --- [nio-8081-exec-1]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
/multitenant
2019-03-20 18:34:28.248 ERROR 25640 --- [nio-8081-exec-1]
o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for
servlet [dispatcherServlet] threw exception
2019-03-20 18:34:28.249 ERROR 25640 --- [nio-8081-exec-1]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
ErrorPage[errorCode=0, location=/error]
2019-03-20 18:34:28.251 ERROR 25640 --- [nio-8081-exec-1]
o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for
servlet [dispatcherServlet] threw exception
2019-03-20 18:34:28.252 ERROR 25640 --- [nio-8081-exec-1]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
ErrorPage[errorCode=0, location=/error]
2019-03-20 18:34:28.506 ERROR 25640 --- [nio-8081-exec-2]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
/favicon.ico
2019-03-20 18:34:28.511 ERROR 25640 --- [nio-8081-exec-2]
o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for
servlet [dispatcherServlet] threw exception
2019-03-20 18:34:28.512 ERROR 25640 --- [nio-8081-exec-2]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
ErrorPage[errorCode=0, location=/error]
2019-03-20 18:34:28.514 ERROR 25640 --- [nio-8081-exec-2]
o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for
servlet [dispatcherServlet] threw exception
2019-03-20 18:34:28.515 ERROR 25640 --- [nio-8081-exec-2]
o.a.c.c.C.[Tomcat].[localhost] : Exception Processing
ErrorPage[errorCode=0, location=/error]
java.lang.NullPointerException: null at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
~[na:1.8.0_191] at
java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:964)
~[na:1.8.0_191] at
com.ineat.spring.keycloak.multitenant.HeaderBasedConfigResolver.resolve(HeaderBasedConfigResolver.java:21)
~[classes/:na] at
org.keycloak.adapters.AdapterDeploymentContext.resolveDeployment(AdapterDeploymentContext.java:88)
~[keycloak-adapter-core-4.4.0.Final.jar:4.4.0.Final] at
org.keycloak.adapters.PreAuthActionsHandler.preflightCors(PreAuthActionsHandler.java:107)
~[keycloak-adapter-core-4.4.0.Final.jar:4.4.0.Final] at
org.keycloak.adapters.PreAuthActionsHandler.handleRequest(PreAuthActionsHandler.java:79)
~[keycloak-adapter-core-4.4.0.Final.jar:4.4.0.Final] at
org.keycloak.adapters.springsecurity.filter.KeycloakPreAuthActionsFilter.doFilter(KeycloakPreAuthActionsFilter.java:81)
~[keycloak-spring-security-adapter-4.4.0.Final.jar:4.4.0.Final] at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
~[spring-web-5.0.10.RELEASE.jar:5.0.10.RELEASE] at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
~[spring-web-5.0.10.RELEASE.jar:5.0.10.RELEASE] at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
~[spring-web-5.0.10.RELEASE.jar:5.0.10.RELEASE] at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
~[spring-security-web-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
~[spring-web-5.0.10.RELEASE.jar:5.0.10.RELEASE] at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
~[spring-web-5.0.10.RELEASE.jar:5.0.10.RELEASE] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:472)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316)
~[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:395)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:254)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:349)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:175)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[na:1.8.0_191] at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[na:1.8.0_191] at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
[tomcat-embed-core-8.5.34.jar:8.5.34] at
java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]
Please advice if there's any more configurations to be made/any errors i should fix.
Thanks in advance.

The spring-boot application you mentioned resolves and loads keycloak configuration for multi tenant based on header field i.e "realm: ORGA1".
but not sure why you are calling http://localhost:8081/multitenant
You are supposed to get token for the required tenant and then called the API by passing the right tenant in header of the request

Spring data jpa : Code gets executed even after an exception is thrown

I am using Spring boot with spring-data-jpa version 2.0.3.RELEASE.
When I want to persist an entity using CRUDRepository, it throws an exception (DataIntegrityViolationException). I noticed a strange behaviour; the code after the persistence line gets executed even when the exception is thrown.
code:
Client result = clientRepository.save(client);
System.out.println("********* after persistence" + result.getId());
output :
Hibernate: select nextval ('client_seq')
*************** after persistence 152
Hibernate: insert into client (foo, bar,..) values (?,?,..)
....
org.springframework.dao.DataIntegrityViolationException: could not execute
statement; SQL [n/a]; constraint [uc_clientemail_col];
....
Note:
the new client is not persisted in the database.
This causes a serious issue, because after that line, I am saving the client in elasticsearch. So There will be inconsistency of data between the database and elasticsearch
EDIT
this is the complete trace
Hibernate: select nextval ('client_seq')
*************** after persistence 102
2018-10-26 13:11:41.784 DEBUG 2072 --- [ XNIO-3 task-12] e.s.portalesp.aop.logging.LoggingAspect : Exit: eu.smartpath.portalesp.service.ClientService.synchronizeClients() with result = null
Hibernate: insert into client (email, field1,field2....) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
2018-10-26 13:11:41.787 WARN 2072 --- [ XNIO-3 task-12] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: 23505
2018-10-26 13:11:41.787 ERROR 2072 --- [ XNIO-3 task-12] o.h.engine.jdbc.spi.SqlExceptionHelper : ERROR: duplicate key value violates unique constraint "uc_clientemail_col"
Detail: Key (email)=(marsantini#libero.it) already exists.
2018-10-26 13:11:41.789 ERROR 2072 --- [ XNIO-3 task-12] o.h.i.ExceptionMapperStandardImpl : HHH000346: Error during managed flush [org.hibernate.exception.ConstraintViolationException: could not execute statement]
2018-10-26 13:11:41.790 DEBUG 2072 --- [ XNIO-3 task-12] org.postgresql.jdbc.PgConnection : setAutoCommit = true
2018-10-26 13:11:41.792 ERROR 2072 --- [ XNIO-3 task-12] e.s.portalesp.aop.logging.LoggingAspect : Exception in eu.smartpath.portalesp.web.rest.ClientResource.synchronizeClients() with cause = 'org.hibernate.exception.ConstraintViolationException: could not execute statement' and exception = 'could not execute statement; SQL [n/a]; constraint [uc_clientemail_col]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement'
org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [uc_clientemail_col]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:259)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:225)
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:540)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:746)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:714)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:532)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:304)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at eu.smartpath.portalesp.service.ClientService$$EnhancerBySpringCGLIB$$343afcbe.synchronizeClients(<generated>)
at eu.smartpath.portalesp.web.rest.ClientResource.synchronizeClients(ClientResource.java:159)
at eu.smartpath.portalesp.web.rest.ClientResource$$FastClassBySpringCGLIB$$9d1a4bc3.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
at eu.smartpath.portalesp.aop.logging.LoggingAspect.logAround(LoggingAspect.java:76)
at sun.reflect.GeneratedMethodAccessor479.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:48)
at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:34)
at com.ryantenney.metrics.spring.AbstractMetricMethodInterceptor.invoke(AbstractMetricMethodInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at eu.smartpath.portalesp.web.rest.ClientResource$$EnhancerBySpringCGLIB$$476d895e.synchronizeClients(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at com.codahale.metrics.servlet.AbstractInstrumentedFilter.doFilter(AbstractInstrumentedFilter.java:111)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at eu.smartpath.portalesp.security.jwt.JWTFilter.doFilter(JWTFilter.java:37)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:336)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:178)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3547)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:600)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:474)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1437)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:494)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3245)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2451)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68)
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:536)
... 149 common frames omitted
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "uc_clientemail_col"
Detail: Key (email)=(marsantini#libero.it) already exists.
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2433)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2178)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:306)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:155)
at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:132)
at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61)
at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:175)
... 166 common frames omitted
2018-10-26 13:11:41.795 WARN 2072 --- [ XNIO-3 task-12] .m.m.a.ExceptionHandlerExceptionResolver : Resolved exception caused by Handler execution: org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [uc_clientemail_col]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement

Unable to register client to eureka server

My Eureka server is running, but when I try to run client application I get following error:
DiscoveryClient_PRODUCT/172.16.2.67:Product:9090 - was unable to refresh its cache! status = Cannot execute request on any known server
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:111) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1017) [eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:931) [eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.(DiscoveryClient.java:441) [eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.(DiscoveryClient.java:304) [eureka-client-1.4.6.jar:1.4.6]
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.(CloudEurekaClient.java:51) [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:179) [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$9785688c.CGLIB$eurekaClient$1() [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$9785688c$$FastClassBySpringCGLIB$$6bcab8ca.invoke() [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$9785688c.eurekaClient() [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:345) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:359) [spring-cloud-context-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:176) [spring-cloud-context-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:340) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) [spring-aop-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192) [spring-aop-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at com.sun.proxy.$Proxy68.getApplications(Unknown Source) [na:na]
at org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration.maybeInitializeClient(EurekaDiscoveryClientConfiguration.java:120) [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration.start(EurekaDiscoveryClientConfiguration.java:97) [spring-cloud-netflix-eureka-client-1.1.0.RELEASE.jar:1.1.0.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:175) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:50) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:348) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:151) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:114) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:879) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
at com.example.config.Product.ProductApplication.main(ProductApplication.java:19) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.4.BUILD-SNAPSHOT.jar:1.5.4.BUILD-SNAPSHOT]
2017-05-22 12:59:25.108 WARN 9652 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Using default backup registry implementation which does not do anything.
2017-05-22 12:59:25.116 INFO 9652 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30
2017-05-22 12:59:25.118 INFO 9652 --- [ restartedMain] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4
2017-05-22 12:59:25.159 INFO 9652 --- [ restartedMain] c.n.e.EurekaDiscoveryClientConfiguration : Registering application Product with eureka with status UP
2017-05-22 12:59:25.161 INFO 9652 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1495438165160, current=UP, previous=STARTING]
2017-05-22 12:59:25.164 INFO 9652 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_PRODUCT/172.16.2.67:Product:9090: registering service...
2017-05-22 12:59:25.315 WARN 9652 --- [nfoReplicator-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failure with status code 500; retrying on another server if available
2017-05-22 12:59:25.319 WARN 9652 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_PRODUCT/172.16.2.67:Product:9090 - registration failed Cannot execute request on any known server
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:111) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:810) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:103) [eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.InstanceInfoReplicator$1.run(InstanceInfoReplicator.java:87) [eureka-client-1.4.6.jar:1.4.6]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
2017-05-22 12:59:25.321 WARN 9652 --- [nfoReplicator-0] c.n.discovery.InstanceInfoReplicator : There was a problem with the instance info replicator
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:111) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:810) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:103) ~[eureka-client-1.4.6.jar:1.4.6]
at com.netflix.discovery.InstanceInfoReplicator$1.run(InstanceInfoReplicator.java:87) [eureka-client-1.4.6.jar:1.4.6]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
On the Discorvery Server Console I'm getting below error:
2017-05-22 14:21:04.554 ERROR 11672 --- [nio-8761-exec-7] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Filter execution threw an exception] with root cause
java.lang.AbstractMethodError: javax.ws.rs.core.UriBuilder.uri(Ljava/lang/String;)Ljavax/ws/rs/core/UriBuilder;
at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:119) ~[javax.ws.rs-api-2.0.1.jar:2.0.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:911) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:875) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:829) ~[jersey-servlet-1.19.1.jar:1.19.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) ~[spring-boot-actuator-1.5.3.RELEASE.jar:1.5.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) ~[spring-boot-actuator-1.5.3.RELEASE.jar:1.5.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.14.jar:8.5.14]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.14.jar:8.5.14]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.14.jar:8.5.14]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
2017-05-22 14:21:11.405 INFO 11672 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
The microservice keeps trying to connect to the server every 10sec, but fails. What may be the cause for this?
Microservice(client) application.yml is as following:
spring:
application:
name: Product
server:
port: 9090
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
Eureka Server is up and running on 8761 port:
2017-05-22 14:35:53.731 INFO 13488 --- [ Thread-10] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2017-05-22 14:35:53.774 INFO 13488 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8761 (http)
2017-05-22 14:35:53.778 INFO 13488 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8761
2017-05-22 14:35:53.785 INFO 13488 --- [ main] c.e.c.E.EurekaServerApplication : Started EurekaServerApplication in 8.619 seconds (JVM running for 12.336)

As discussed in comments, the reason behind this issue is probably due to conflict of class javax.ws.rs.ext.MessageBodyWriter from two different versions of jar(javax.ws.rs-api and jsr311-api). The pom.xml used in the project had dependency on both of these jars and hence the issue. This was rectified by copying the working pom.xml provided by Spring's sample code for registration and discovery.

I faced this issue when I generated the project from spring initialzr.
The Eureka Server shows URL with port 8761 but it actually runs on default embedded tomcat port 8080.
adding server.port=8761 (or whatever you want to configure) in application properties of Eureka Server project
Using that port with Eureka Server host add eureka.client.serviceUrl.defaultZone=: in application properties of Eureka Client resolved the issue.
Make sure to have eureka client project running in different port than eureka server project

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