I have a strange error which I searched about alot on the internet. I could not figure it why I am getting this error. I found some explanations about that error on spring jira. I have context:component-scan in applicationContext.xml and I defines 5 packages in com.sow.webservices package. However when I add the controller package including controller classes, I throws
Error occured processing XML '[Ljava.lang.String; cannot be cast to java.lang.String'. See Error Log for more details
This is component-scan:
<context:component-scan base-package="com.sow.webservices.aop,
com.sow.webservices.exceptions,
com.sow.webservices.models,
com.sow.webservices.services,
com.sow.webservices.controller">
I would like to show you whole exception trace. Appreciate for your help.
!ENTRY org.springframework.ide.eclipse.beans.core 1 0 2014-04-11 18:07:39.996
!MESSAGE Error occured processing '/SOW_WS/src/main/webapp/WEB-INF/applicationContext.xml'
!STACK 0
java.lang.ClassCastException: [Ljava.lang.String; cannot be cast to java.lang.String
at org.springframework.context.annotation.AnnotationBeanNameGenerator.determineBeanNameFromAnnotation(AnnotationBeanNameGenerator.java:92)
at org.springframework.context.annotation.AnnotationBeanNameGenerator.generateBeanName(AnnotationBeanNameGenerator.java:70)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:247)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:85)
at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:74)
at org.springframework.ide.eclipse.beans.core.internal.model.namespaces.DelegatingNamespaceHandlerResolver$ElementTrackingNamespaceHandler.parse(DelegatingNamespaceHandlerResolver.java:177)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1427)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$ErrorSuppressingBeanDefinitionParserDelegate.parseCustomElement(BeansConfig.java:1400)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1417)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:187)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$ToolingFriendlyBeanDefinitionDocumentReader.doRegisterBeanDefinitions(BeansConfig.java:1330)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:110)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:494)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$2.registerBeanDefinitions(BeansConfig.java:402)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:391)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:335)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$2.loadBeanDefinitions(BeansConfig.java:388)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$3.call(BeansConfig.java:445)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansConfig$3.call(BeansConfig.java:1)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Even if xml throws this exception I can run my application, but when I remove com.sow.webservices.controller it stops showing there is mistake sign but it gives 404 error. Since I am in trouble with component-scan, LocaleChangeInterceptor is not working and I can not internationalize my application
check your controllers, if one of them uses the annotation #ControllerAdvice try commenting it out and the weird thing is the error goes away. FREAKY!!!!
Related
I am new to OSGi and I made a method which will call the Google translate API. When I called that method in a main it is working fine. And also I used Eclipse for coding and exported the project into a jar file from Eclipse and installed it on the apache felix framework. When I start the bundle I get the following exceptions,
I added all the external jar files to build path also.
org.osgi.framework.BundleException: Activator start error in bundle EnglishToSinhalaServicePublisher [58].
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2452)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998)
at org.apache.felix.gogo.command.Basic.start(Basic.java:739)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:139)
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:91)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/google/api/client/json/JsonFactory
at englishtosinhalaservicepublisher.Activator.start(Activator.java:46)
at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:698)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2402)
... 19 more
Caused by: java.lang.ClassNotFoundException: com.google.api.client.json.JsonFactory not found by EnglishToSinhalaServicePublisher [58]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1597)
at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1982)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 22 more
java.lang.NoClassDefFoundError: com/google/api/client/json/JsonFactory
g!
We are upgrading our application from Java 1.7 to Java 1.8. Currently, we are using drools version drools-core-5.4.0.Final.jar, mvel2-2.1.0.drools6.jar & added ecj-4.4.2.jar to resolve the compilation issue (ClassFormatException). We also updated mvel jar to support 1.8. However while Runtime we are getting NullPointerException in one of the drool files. I do not think there is an issue with the rule file as it was working fine with java 1.7, Please let me know what could be the issue? Thanks!.
rule "validate rule" extends BaseRule
agenda-group "validate"
no-loop true
dialect "java"
when
eval(isValidated())
then
...
update();
end
Exception executing consequence for rule "validate_rule" in defaultpkg: java.lang.NullPointerException
at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1283)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1209)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1442)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
at com.test.rules.controller.runner.RulesEngineRuleFirer.fireAllRules(RulesEngineRuleFirer.java:81)
at com.test.rules.controller.runner.RulesEngineRuleFirer.runRulesEngineFireRule(RulesEngineRuleFirer.java:62)
at com.test.rules.controller.runner.DroolsControllerRunner.runRulesEngine(DroolsControllerRunner.java:285)
at com.test.rules.controller.runner.DroolsControllerRunner.runRulesEngineSetAdendaFocus(DroolsControllerRunner.java:199)
at com.test.rules.controller.DroolsControllerCompleteRunner.runRulesEngineComplete(DroolsControllerCompleteRunner.java:160)
at com.test.rules.controller.DroolsControllerCompleteRunner.runRulesEngineCompleteRequest(DroolsControllerCompleteRunner.java:109)
at com.test.rules.controller.DroolsControllerCompleteRunner.runCompleteRulesEngine(DroolsControllerCompleteRunner.java:72)
at com.test.rules.controller.DroolsController.runCompleteConstriantEngine(DroolsController.java:107)
at com.test.wfplat.frameworks.core.mgr.AbstractRulesEngineWorkflowMgr.runRulesEngineService(AbstractRulesEngineWorkflowMgr.java:62)
at com.test.wfplat.frameworks.core.mgr.ChainRulesEngineWorkflowMgr$1.call(ChainRulesEngineWorkflowMgr.java:74)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at org.drools.common.DefaultAgenda.createActivation(DefaultAgenda.java:569)
at org.drools.reteoo.RuleTerminalNode.modifyLeftTuple(RuleTerminalNode.java:297)
at org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateModifyChildLeftTuple(CompositeLeftTupleSinkAdapter.java:295)
at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:363)
at org.drools.reteoo.LeftTupleSource.doModifyLeftTuple(LeftTupleSource.java:297)
at org.drools.reteoo.LeftTupleSource.modifyLeftTuple(LeftTupleSource.java:271)
at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:429)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateModifyLeftTuple(SingleLeftTupleSinkAdapter.java:205)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateModifyObject(SingleLeftTupleSinkAdapter.java:235)
at org.drools.reteoo.LeftInputAdapterNode.modifyObject(LeftInputAdapterNode.java:170)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateModifyObject(SingleObjectSinkAdapter.java:68)
at org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:314)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:265)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:470)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:370)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:317)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:312)
at defaultpkg.Rule_validate_rule_c2186cc461e2439b9e53b76b6b5a4c4b.defaultConsequence(Rule_validate_rule_c2186cc461e2439b9e53b76b6b5a4c4b.java:16)
at defaultpkg.Rule_validate_rule_c2186cc461e2439b9e53b76b6b5a4c4bDefaultConsequenceInvokerGenerated.evaluate(Unknown Source)
at defaultpkg.Rule_validate_rule_c2186cc461e2439b9e53b76b6b5a4c4bDefaultConsequenceInvoker.evaluate(Unknown Source)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1273)
... 19 more
We got this error while Hygieia dashboard installation. Please confirm if anyone has come across this. this looks related to spring boot and got it while I was installing the UI for Hygieia
2017-07-11 20:50:41,551 ERROR o.s.boot.SpringApplication - Application startup failed
org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat servlet container
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:165) ~[spring-boot-1.3.0.RELEASE.jar!/:
1.3.0.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:290) ~[spring-boot-1.3.0
.RELEASE.jar!/:1.3.0.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141) ~[spring-boot-1.3.0.RELEASE.jar!/:1
.3.0.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.2.5.RELEASE.jar!/:4.2.5.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.R
ELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE]
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:134) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE]
at com.capitalone.dashboard.Application.main(Application.java:37) [api.jar!/:2.0.5-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_131]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_131]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) [api.jar!/:2.0.5-SNAPSHOT]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_131]
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:159) ~[spring-boot-1.3.0.RELEASE.jar!/:
1.3.0.RELEASE]
... 15 common frames omitted
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat servlet container
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:165)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:290)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:295)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:134)
at com.capitalone.dashboard.Application.main(Application.java:37)
... 6 more
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:159)
... 15 more
Is this the full log ? You should always send the complete log.
Besides your question is wrong, there is nothing to install as far as Hygieia is considered.
there are simple steps that one needs to follow, namely -
1.Get the repo in you system
2.setup all the requirements of Hygieia (Mongodb, maven etc etc)
3.mvn clean install on the root directory
Create proper properties file for the jars
Run Hygieia
But Even I have faced a lot of problems with setting up Hygieia, so you should take care of these -
Always get the fresh/latest code from github
If you are on corporate/Company N/W then do ensure you have proxies to maven and system proxy setup.
If you add the full trace log then I just might get the problem
You need to follow some steps
Download Hygieia rep from this link:
https://github.com/Hygieia/Hygieia
Install maven and java :-
https://linuxize.com/post/how-to-install-apache-maven-on-ubuntu-18-04/
Also need to download subdivision-collector folder inside this directory
Hygieia/collectors/scm:-
https://github.com/Hygieia/hygieia-scm-subversion-collector
Now open \Hygieia folder and run
$ mvn clean install
I am getting the below exception when I trying run the maven project
SEVERE: StandardWrapper.Throwable
java.lang.NoSuchMethodError: org.springframework.core.JdkVersion.isAtLeastJava15()Z
at org.springframework.beans.CachedIntrospectionResults.(CachedIntrospectionResults.java:249)
at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:144)
at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:252)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:798)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:651)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:78)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:63)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:128)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1230)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1174)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1066)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5370)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5668)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1700)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1690)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Jun 23, 2018 11:26:56 AM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet [spring-mvc] in web application [/SpringMvcUser] threw load() exception
java.lang.NoSuchMethodError: org.springframework.core.JdkVersion.isAtLeastJava15()Z
at org.springframework.beans.CachedIntrospectionResults.(CachedIntrospectionResults.java:249)
at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:144)
at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:252)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:798)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:651)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:78)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:63)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:128)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1230)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1174)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1066)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5370)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5668)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1700)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1690)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
help me to solve this exception
Javadoc for class org.springframework.core.JdkVersion says:
Deprecated. as of Spring 4.2.1, in favor of direct checks for the desired JDK API variants via reflection
In Spring version 4.2.6 there is no method isAtLeastJava15() in class JdkVersion.
Some of your code seems to be written for an an older version of Spring. Are mixing up different versions or is a library you are using requiring another version? Have you checked your classpath?
My CORBA/Webstart application using an alternative ORB implementation (OpenORB) doesn't work with Java7u55 anymore.
The following exception occurs:
Error org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation org.openorb.CORBA.ORBSingleton vmcid: 0x0 minor code: 0 completed: No
org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation org.openorb.CORBA.ORBSingleton vmcid: 0x0 minor code: 0 completed: No
at org.omg.CORBA.ORB.create_impl_with_systemclassloader(Unknown Source)
at org.omg.CORBA.ORB.init(Unknown Source)
at org.openorb.CORBA.kernel.OpenORBLoader.init(Unknown Source)
at org.openorb.CORBA.ORB.set_parameters(Unknown Source)
at org.omg.CORBA.ORB.init(Unknown Source)
...
Caused by: java.lang.ClassNotFoundException: org.openorb.CORBA.ORBSingleton
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
... 17 more
I think a a change in orb.omg.CORBA.ORB.init() is the reason the class for the ORB implementation wasn't found anymore as SystemClassLoader is used here now to create the ORB instance instead of current Thread's ContextClassLoader as before.
As a workaround I've copied the Jar containing org.omg.CORBA API of the ORB implementation I'm using to <jre-home>/lib/endorsed/ expecting that it will be used instead but still the implementation in rt.jar is used.
Any ideas how to work around this problem?
Finally I found a workaround which doesn't work for the currently used OpenORB but for JacORB (3.4).
Oracle obviously updated the release notes suggesting to configure only the org.omg.CORBA.ORBClass property but to ommit org.omg.CORBA.ORBSingletonClass which means the default singleton implementation shipped with Java will be used which is visible for the SystemClassLoader.
This may not work with all ORBs and in fact it doesn't work with OpenORB as it checks org.omg.CORBA.ORBSingletonClass but my application works without problems with the mentioned version of JacORB now.
there should be several workarounds:
specify the following VM args when launching your app: -Djava.endorsed.dirs=/path/to/your/corba_library_jars_folder
specify the following VM args when launching your app:
-Xbootclasspath/p:/path/to/your/corba_lib.jar:/path/to/your/corba_lib2.jar:...
copy your jars into $JAVA_HOME/jre/lib/endorsed directory (create it if it doesn't exist)