UnknownHostException in Spring Boot with Consul - spring-boot

I am using spring-boot-starter-parent version 2.2.2.RELEASE with spring-cloud.version Hoxton.SR1 to create 2 services : ordercreate(Supplier) and orderconsume(Consumer).
In Consul, the 2 services are up as below
I get the exception
java.net.UnknownHostException: ordercreate
when invoking the orderconsumer service as below:
http://localhost:8282/consumeOrder
Please find the code details below.Thanks for suggestions.
ordercreate
pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
application.properties
spring.application.name=ordercreate
server.port=8181
OrderCreateController
#RestController
public class OrderCreateController {
#GetMapping("/createOrder")
public String createOrder() {
System.out.println("In Supplier...");
return "Hello consul";
}
}
For Consumer,
orderconsume
pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
application.properties
spring.application.name=orderconsume
server.port=8282
OrderConsumeApplication
#SpringBootApplication
#EnableDiscoveryClient
public class OrderConsumeApplication {
public static void main(String[] args) {
SpringApplication.run(OrderConsumeApplication.class, args);
}
}
OrderConsumeController
#RestController
public class OrderConsumeController {
#Autowired
private RestTemplate restTemplate;
//http://localhost:8282/consumeOrder
#GetMapping(value="/consumeOrder")
public String receiveOrder() {
String uri = "http://ordercreate/createOrder";
return restTemplate.getForObject(uri, String.class);
}
#Bean
public RestTemplate getRestTemplate() {
return new RestTemplate();
}
}

Related

Error while connecting to AWS SQS from spring boot

I am trying to integrate AWS SQS into my springboot app using spring cloud AWS, but keep getting this error(posted below), can someone help?
Here are my files.
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'simpleMessageListenerContainer' defined in
class path resource
[org/springframework/cloud/aws/messaging/config/annotation/SqsConfiguration.class]:
Invocation of init method failed; nested exception is
java.lang.NoSuchMethodError:
com.amazonaws.http.ExecutionContext.setCredentials(Lcom/amazonaws/auth/AWSCredentials;)V
#Configuration
public class AWSConfig {
#Value("${amazon.dynamodb.endpoint}")
private String amazonDynamoDBEndpoint;
#Value("${amazon.aws.accesskey}")
private String amazonAWSAccessKey;
#Value("${amazon.aws.secretkey}")
private String amazonAWSSecretKey;
#Value("${amazon.sqs.endpoint}")
private String amazonSqsEndpoint;
#Bean
#Primary
public AmazonSQSAsyncClient amazonSQSAsyncClient() {
AmazonSQSAsyncClient amazonSQSAsyncClient = new AmazonSQSAsyncClient(amazonAWSCredentials());
if (!StringUtils.isEmpty(amazonSqsEndpoint)) {
amazonSQSAsyncClient.setEndpoint(amazonSqsEndpoint);
}
return amazonSQSAsyncClient;
}
#Bean
public AWSCredentials amazonAWSCredentials() {
return new BasicAWSCredentials(amazonAWSAccessKey, amazonAWSSecretKey);
}
}
I am able to work with dynamodb with this but not able to connect to SQS.
I have given the correct access key, secret access key and end point in application.properties file.
#Component
#EnableSqs
public class SQSDao {
private static final Logger logger = LoggerFactory.getLogger(SQSDao.class);
private QueueMessagingTemplate queueMessagingTemplate;
#Autowired
public SQSDao(AmazonSQSAsync amazonSqs) {
this.queueMessagingTemplate = new QueueMessagingTemplate(amazonSqs);
}
public void send(String message) {
System.out.println(queueMessagingTemplate.getDefaultDestination());
queueMessagingTemplate.convertAndSend("test-queue", MessageBuilder.withPayload(message).build());
}
#SqsListener(value = "test-queue", deletionPolicy = SqsMessageDeletionPolicy.NEVER)
public void receive(String message)
{
System.out.println("message: " + message);
}
}
I was facing the same issue as described. My solution requeried implement some extra methods for the Config class:
imports [...]
#Configuration
#RefreshScope
public class SpringCloudSQSConfig {
#Value("${cloud.aws.credentials.accessKeyId:default}")
private String accessKeyId;
#Value("${cloud.aws.credentials.secretKey:default}")
private String secretKey;
#Value("${cloud.aws.region.static:default}")
private String region;
private Logger logger = LoggerFactory.getLogger(this.getClass());
#Bean
public QueueMessagingTemplate queueMessagingTemplate() {
return new QueueMessagingTemplate(amazonSQSAsync());
}
public AmazonSQSAsync amazonSQSAsync() {
return AmazonSQSAsyncClientBuilder.standard().withRegion(Regions.US_EAST_2)
.withCredentials(new AWSStaticCredentialsProvider(new BasicAWSCredentials(accessKeyId, secretKey)))
.build();
}
#Bean
public SimpleMessageListenerContainerFactory simpleMessageListenerContainerFactory() {
SimpleMessageListenerContainerFactory msgListenerContainerFactory = new SimpleMessageListenerContainerFactory();
msgListenerContainerFactory.setAmazonSqs(amazonSQSAsync());
return msgListenerContainerFactory;
}
#Bean
public QueueMessageHandler queueMessageHandler() {
QueueMessageHandlerFactory queueMsgHandlerFactory = new QueueMessageHandlerFactory();
queueMsgHandlerFactory.setAmazonSqs(amazonSQSAsync());
QueueMessageHandler queueMessageHandler = queueMsgHandlerFactory.createQueueMessageHandler();
List<HandlerMethodArgumentResolver> list = new ArrayList<>();
HandlerMethodArgumentResolver resolver = new PayloadArgumentResolver(new MappingJackson2MessageConverter());
list.add(resolver);
queueMessageHandler.setArgumentResolvers(list);
return queueMessageHandler;
}
}
And for the dependencies implemented:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-aws</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-aws-messaging</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>
and adding the next property in the properties file:
spring.main.allow-bean-definition-overriding=true
I was able to fix this problem by adding the last line shown to my application.yml during local testing
spring:
autoconfigure:
exclude:
- org.springframework.cloud.aws.autoconfigure.context.ContextStackAutoConfiguration
- org.springframework.cloud.aws.autoconfigure.context.ContextRegionProviderAutoConfiguration
I resolved it by removing duplicate dependencies :
aws-xray-recorder-sdk-aws-sdk
aws-xray-recorder-sdk-aws-sdk-v2
aws-xray-recorder-sdk-aws-sdk-instrumentor
aws-xray-recorder-sdk-aws-sdk-v2-instrumentor
Before :
<!-- AWS X-Ray -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-core</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-apache-http</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk-v2</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk-instrumentor</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk-v2-instrumentor</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-sql-postgres</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-spring</artifactId>
</dependency>
After:
<!-- AWS X-Ray -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-core</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-apache-http</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk-v2</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-aws-sdk-v2-instrumentor</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-sql-postgres</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-xray-recorder-sdk-spring</artifactId>
</dependency>
Fixed it, apparently issue was related to dependency mix up as mentioned here

Spring boot Turbine.stream with ssl Not working

We are trying to enable https in turbine stream. And we are facing below problem:
ERROR 10644 --- [o-eventloop-3-1] r.n.p.h.s.ServerRequestResponseConverter : Invalid HTTP request recieved. Decoder error.
java.lang.IllegalArgumentException: invalid version format: ■\ᅦ:4'|"￀+￀/￀,￀0ᅩ로또ᅩ￀ ￀￀
at io.netty.handler.codec.http.HttpVersion.<init>(HttpVersion.java:130) ~[netty-codec-http-4.0.27.Final.jar!/:4.0.27.Final]
at io.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:84) ~[netty-codec-http-4.0.27.Final.jar!/:4.0.27.Final]
Please provide any suggestion
Thank you.
UPDATE
Do we need to enable ssl to message broker which is handling the stream
Code
#SpringBootApplication
#RestController
#EnableDiscoveryClient
#EnableTurbineStream
public class DemoHystrixApplication {
public static void main(String[] args) {
SpringApplication.run(DemoHystrixApplication.class, args);
}
#RequestMapping(value ="/test")
public String helloHystrix() {
ObjectMapper mapper = new ObjectMapper();
String output = null;
try {
output = mapper.writeValueAsString("{ \"message\" : \"test : Welcome to test Notification Detail Page.\"}");
} catch (JsonProcessingException e) {
e.getMessage();
}
return output;
}
#RequestMapping(value ="/test2")
public String testhello() {
ObjectMapper mapper = new ObjectMapper();
String output = null;
try {
output = mapper.writeValueAsString("{ \"message\" : \"test : Welcome to test1 Page.\"}");
} catch (JsonProcessingException e) {
e.getMessage();
}
return output;
}
}
POM Dependency
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-turbine-stream</artifactId>
<version>1.1.5.BUILD-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
</dependencies>
application.properties
server.port=8083
spring.cloud.consul.host=localhost
spring.cloud.consul.port=8500
spring.application.name=testApp
security.basic.enabled=false
eureka.client.enabled=false
server.ssl.key-store=consul.pfx
server.ssl.key-password=changeit
server.ssl.key-store-type=PKCS12
server.ssl.trust-store=root.pfx
server.ssl.trust-store-password=changeit
server.ssl.trust-store-type=PKCS12
spring.cloud.consul.discovery.scheme=https

Arquillian TomEE embedded test with web sockets

I' trying to write a test of a serverendpoint using websockets in an arquillian test. I get an error saying
Caused by: org.glassfish.tyrus.core.HandshakeException: Response code was not 101: 404.
When deploying, I get a warning in the log of the tomee:
WARNING: Can't set TomEE ServerEndpointConfig$Configurator
java.lang.NoSuchFieldException: defaultImpl
at java.lang.Class.getDeclaredField(Class.java:2070)
at org.apache.tomee.catalina.TomcatWebAppBuilder.forceEEServerEndpointConfigurator(TomcatWebAppBuilder.java:338)
at org.apache.tomee.catalina.TomcatWebAppBuilder.<init>(TomcatWebAppBuilder.java:284)
at org.apache.tomee.catalina.TomcatLoader.initialize(TomcatLoader.java:222)
at org.apache.tomee.embedded.Container.start(Container.java:293)
....
The endpoints are defined like this:
#ServerEndpoint("/games")
public class GameEndPoint {
#Inject
GameManager gameManager;
#Inject
private GameSessionHandler sessionHandler;
#OnOpen
public void open(Session session) {
}
#OnClose
public void close(Session session) {
}
#OnError
public void onError(Throwable error) {
}
#OnMessage
public void handleMessage(String payload, Session session) {
}
}
#ClientEndpoint
public class SocketClient {
#OnOpen
public void onOpen(Session session) {
}
#OnMessage
public void onMessage(String message, Session session) {
}
#OnClose
public void onClose(Session session, CloseReason closeReason) {
LOGGER.info(String.format("Session %s close because of %s", session.getId(), closeReason));
}
public void openConnection(URL url) {//URL injected arquillian resource, where url is for http connection..
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
try {
URI uri = URI.create(url.toString().replace("http", "ws") + "games");
container.connectToServer(this, uri);
} catch (DeploymentException | IOException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new RuntimeException(ex);
}
}
}
My test is written in spock, which fails in setup
#RunWith(ArquillianSputnik)
class GameServiceSocketIT extends Specification {
#Deployment
public static Archive archive() {
return createDeployment();//shrinkwrap stuff
}
#ArquillianResource
URL url;
#Inject
SocketClient client;
def Game currentGame = null
def setup() { // run before every feature method
client.openConnection(url);
}
def 'init new game' () {
given: 'blabla'
blabla
when: 'blalba'
blabla
then: 'blabla'
blablabla...
}
}
My pom dependencies:
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.spock</groupId>
<artifactId>arquillian-spock-container</artifactId>
<version>1.0.0.Beta3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.spockframework</groupId>
<artifactId>spock-core</artifactId>
<version>0.7-groovy-2.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.1.8</version>
<scope>test</scope>
</dependency>
<!-- For Arquillian Integration tests in TOMEE -->
<dependency>
<groupId>org.apache.openejb</groupId>
<artifactId>arquillian-tomee-embedded</artifactId>
<version>1.7.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.openejb</groupId>
<artifactId>tomee-embedded</artifactId>
<version>1.7.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.tyrus</groupId>
<artifactId>tyrus-container-jdk-client</artifactId>
<version>1.8.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
Edit:
my createDeployment method:
return ShrinkWrap.create(WebArchive.class, "test.war")
.addAsWebInfResource(EmptyAsset.INSTANCE, ArchivePaths.create("beans.xml"))
.addPackages(true, Filters.exclude(".*IT.class"), "engine")
.addPackages(true, Filters.exclude(".*IT.class"), "socket")
.addPackages(true, Filters.exclude(".*IT.class"), "persistence");
Replacing the dependency:
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
with the dependency:
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat7-websocket</artifactId>
<version>7.0.59</version>
<scope>provided</scope>
</dependency>
Fixes the problem and I now get the client to connect to my server, hower now I'm having problems with CDI injection in my ServerEndPoint. That seems to be another issue..

Spring boot not able to recognize JSP

I have configured Spring Boot using annotations.
I have the following files
1)AppStarter class for configuring spring boot
#Configuration
#EnableAutoConfiguration
#PropertySource(value = "classpath:app.properties", ignoreResourceNotFound = true)
#ComponentScan(basePackages = "com.sample.config")
public class AppStarter extends SpringBootServletInitializer{
#Value("${server.contextPath}")
private String contextPath;
#Value("${server.port:8080}")
private String port;
#Bean
public static PropertySourcesPlaceholderConfigurer propertyPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
#Bean
public EmbeddedServletContainerFactory servletContainer() {
TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory();
factory.setPort(Integer.valueOf(port));
factory.setContextPath(contextPath);
factory.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/notfound.html"));
return factory;
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(AppStarter.class);
}
public static void main(String[] args) {
SpringApplication.run(AppStarter.class, args);
}
}
2)WebConfig class
#Configuration
#ComponentScan(basePackages = {"com.sample.rest"})
#EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter
{
#Bean
public static PropertySourcesPlaceholderConfigurer properties()
{
PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer();
Resource[] resources = new ClassPathResource[]{new ClassPathResource("app.properties")};
configurer.setLocations(resources);
configurer.setIgnoreUnresolvablePlaceholders(true);
return configurer;
}
#Bean
public InternalResourceViewResolver viewResolver()
{
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/pages/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
}
3)app.properties
core_pool_size = 100
max_pool_size = 600
queue_capacity = 160
server.port=8080
spring.view.prefix: /WEB-INF/pages/
spring.view.suffix: .jsp
4)UserController class
#Controller
public class UserController extends AbstractController {
#RequestMapping(value = "/user/add")
public String user()
{
return "adduser";
}
}
5)pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>1.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>1.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.hateoas</groupId>
<artifactId>spring-hateoas</artifactId>
<version>0.16.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
</dependency>
<dependency>
<groupId>net.sf.dozer</groupId>
<artifactId>dozer</artifactId>
<version>5.5.1</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
<exclusion>
<artifactId>org.slf4j</artifactId>
<groupId>slf4j-log4j12</groupId>
</exclusion>
<exclusion>
<artifactId>log4j</artifactId>
<groupId>log4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
<!--Spring boot test-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>1.2.0.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>4.3.7.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-connector-java.version}</version>
<scope>runtime</scope>
</dependency>
</dependencies>
6)adduser.jsp which is in webapp/WEB_INF/pages folder
When I try to access my jsp through localhost:8080/sample/user/add i get :
org.springframework.web.servlet.PageNotFound | No mapping found for HTTP request with URI [/sample/WEB-INF/pages/adduser.jsp] in DispatcherServlet with name 'dispatcherServlet'
Can anyone could provide any help on this issue?
You configured: spring.view.prefix: /WEB-INF/jsp/
But your folder is: webapp/WEB_INF/pages
/jsp vs, /pages
You need to change one of them, so that they match!
Second: you need to request the url (That is written at your controller but not the path of the jsp!
So use:
localhost:8080/<yourAppName>/user/add instead of /sample/WEB-INF/pages/adduser.jsp
to use localhost:8080/samples/user/add, you would need to change the controller code to this,
#Controller
#RequestMapping("/samples")
public class UserController extends AbstractController {
#RequestMapping(value = "/user/add")
public String user()
{
return "adduser";
}
}
It looks like you have an embedded Tomcat container configured. JSP pages are not supported when Tomcat is embedded. http://docs.spring.io/spring-boot/docs/1.2.1.RELEASE/reference/htmlsingle/#boot-features-jsp-limitations
Try this:
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}

Spring Boot/Spring Integration Servlet Context/DelegatingWebMvcConfiguration issue

I'm not sure the best way to word this issue, because I have no idea why this happens.
When I start up my Spring Boot application without the spring-integration-core jar, my app starts up fine. The second I add the spring-boot-starter-integration or any spring-integration-core library to my Maven pom file the servlet context is always null on my DelegatingWebMvcConfiguration class and I get the following error:
java.lang.IllegalArgumentException: A ServletContext is required to configure default servlet handling
After doing some debugging, I see the DelegatingWebMvcConfiguration class initialized before the EmbeddedWebApplicationContext sets the servlet context for my application, which makes sense why the servlet context is null for my DelegatingWebMvcConfiguration and set for all the other classes initialized with postProcessBeforeInitialization in ServletContextAwareProcessor. Simply removing the Spring Integration dependency fixes the issue, but I'd like to use Spring Integration in my Boot application.
My question is what would cause the DelegatingWebMvcConfiguration to be created before the EmbeddedWebApplicationContext can call prepareEmbeddedWebApplicationContext method.
Spring dependencies using Spring Boot 1.1.8.RELEASE:
org.springframework.boot
spring-boot-starter-web
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-solr</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-integration</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.hateoas</groupId>
<artifactId>spring-hateoas</artifactId>
<version>0.16.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-core</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-cassandra</artifactId>
<version>1.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.ldap</groupId>
<artifactId>spring-ldap-core</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>4.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
<version>4.1.2.RELEASE</version>
</dependency>
My root configuration file:
#Configuration
#EnableAutoConfiguration
#EnableAsync
#EnableEntityLinks
#EnableSpringDataWebSupport
#ComponentScan
#PropertySource(value = "file:../application.properties",
ignoreResourceNotFound = true)
public class ApplicationInitializer extends SpringBootServletInitializer
implements EmbeddedServletContainerCustomizer {
public static void main(String[] args) throws Exception {
SpringApplication.run(ApplicationInitializer.class, args);
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application){
return application.sources(ApplicationInitializer.class);
}
#Override
public void customize(ConfigurableEmbeddedServletContainer container) {
container.setContextPath(APPLICATION_ROOT_PATH);
}
// Global beans defined here
}
Update: After trying many different things, I found out after disabling my SchedulingConfigurer my app now starts. Here is my SchedulingConfigurer
#Configuration
#EnableScheduling
#EnableConfigurationProperties(SchedulingProperties.class)
public class SchedulingConfig implements SchedulingConfigurer {
//Inject Runnables and properties
#Override
public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
taskRegistrar.setScheduler(taskScheduler());
// call taskRegistrar.addFixedRateTask with runnable and property rate value
}
#Bean(destroyMethod = "shutdown")
public Executor taskScheduler() {
ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
taskScheduler.setPoolSize(Runtime.getRuntime().availableProcessors());
return taskScheduler;
}
}

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