Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via portals-pluto-user by Ludovic DAUCHY, 1 year ago
This exception has no message.
via Oracle Community by 843810, 2 years ago
This exception has no message.
via Coderanch by Manish Hatwalne, 1 year ago
This exception has no message.
via Oracle Community by 843841, 2 years ago
This exception has no message.
via Coderanch by Migrated From Jforum.net, 1 year ago
This exception has no message.
via Oracle Community by 843841, 2 years ago
This exception has no message.
java.lang.IllegalArgumentException: addChild:  Child name
'simpleDateTimePortlet' is not unique	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:815)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)	at org.apache.catalina.core.StandardContext.addChild(StandardContext.java:1346)	at sun.reflect.GeneratedMethodAccessor41.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)	at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)	at org.apache.commons.digester.Rule.end(Rule.java:276)	at org.apache.commons.digester.Digester.endElement(Digester.java:1058)	at org.apache.xerces.parsers.AbstractSAXParser.endElement(UnknownSource)	at org.apache.xerces.impl.dtd.XMLDTDValidator.endNamespaceScope(UnknownSource)	at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(UnknownSource)	at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(UnknownSource)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(UnknownSource)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(UnknownSource)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)	at org.apache.commons.digester.Digester.parse(Digester.java:1548)	at org.apache.catalina.startup.ContextConfig.applicationConfig(ContextConfig.java:282)	at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:639)	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:243)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3587)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)	at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)	at org.apache.catalina.core.StandardHost.install(StandardHost.java:788)	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:559)	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:401)	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:754)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:363)	at org.apache.catalina.core.StandardService.start(StandardService.java:497)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)	at org.apache.catalina.startup.Catalina.start(Catalina.java:512)	at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)	at org.apache.catalina.startup.Catalina.process(Catalina.java:180)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)