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From "Devesh Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WW-4894) Issue while class loading
Date Mon, 20 Nov 2017 11:14:02 GMT

    [ https://issues.apache.org/jira/browse/WW-4894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259105#comment-16259105
] 

Devesh Jain commented on WW-4894:
---------------------------------

If we get the issue with Websphere 8.5. We are not able to find the classloader.class in java.lang
for Websphere java package.

> Issue while class loading
> -------------------------
>
>                 Key: WW-4894
>                 URL: https://issues.apache.org/jira/browse/WW-4894
>             Project: Struts 2
>          Issue Type: Bug
>    Affects Versions: 2.3.32
>            Reporter: Anekant Jain
>            Priority: Blocker
>             Fix For: 2.3.x
>
>
> Facing following issue in production environment, threads are being Blocked and from
almost a week every day it is required to restart the server. Seems there is some issue with
class loading, we are using Websphere application server. Following is the stack trace of
blocking thread -
> *Owns Monitor Lock on java/util/Hashtable@0x000000001240AD50*
> {noformat}
> at java/util/Hashtable.get(Hashtable.java:469(Compiled Code)) 
> at java/lang/ClassLoader.getPackage(ClassLoader.java:953(Compiled Code)) 
> at java/lang/Class.getPackage(Class.java:1660(Compiled Code)) 
> at com/opensymphony/xwork2/ognl/SecurityMemberAccess.isAccessible(SecurityMemberAccess.java:75(Compiled
Code)) 
> at ognl/OgnlRuntime.isMethodAccessible(OgnlRuntime.java:1974(Compiled Code)) 
> at ognl/OgnlRuntime.hasGetMethod(OgnlRuntime.java:1980(Compiled Code)) 
> at ognl/OgnlRuntime.hasGetProperty(OgnlRuntime.java:2040(Compiled Code)) 
> at com/opensymphony/xwork2/ognl/accessor/CompoundRootAccessor.getProperty(CompoundRootAccessor.java:141(Compiled
Code)) 
> at ognl/OgnlRuntime.getProperty(OgnlRuntime.java:2413(Compiled Code)) 
> at ognl/ASTProperty.getValueBody(ASTProperty.java:114(Compiled Code)) 
> at ognl/SimpleNode.evaluateGetValueBody(SimpleNode.java:212(Compiled Code)) 
> at ognl/SimpleNode.getValue(SimpleNode.java:258(Compiled Code)) 
> at ognl/Ognl.getValue(Ognl.java:467(Compiled Code)) 
> at com/opensymphony/xwork2/ognl/OgnlUtil$4.execute(OgnlUtil.java:360(Compiled Code))

> at com/opensymphony/xwork2/ognl/OgnlUtil.compileAndExecute(OgnlUtil.java:383(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlUtil.getValue(OgnlUtil.java:358(Compiled Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.getValue(OgnlValueStack.java:363(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.tryFindValue(OgnlValueStack.java:351(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.tryFindValueWhenExpressionIsNotNull(OgnlValueStack.java:326(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.findValue(OgnlValueStack.java:310(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.findValue(OgnlValueStack.java:371(Compiled
Code)) 
> at com/opensymphony/xwork2/ognl/OgnlValueStack.findString(OgnlValueStack.java:226(Compiled
Code)) 
> at sun/reflect/GeneratedMethodAccessor104.invoke(Bytecode PC:40(Compiled Code)) 
> at sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55(Compiled
Code)) 
> at java/lang/reflect/Method.invoke(Method.java:613(Compiled Code)) 
> at freemarker/ext/beans/BeansWrapper.invokeMethod(BeansWrapper.java:1458(Compiled Code))

> at freemarker/ext/beans/ReflectionCallableMemberDescriptor.invokeMethod(ReflectionCallableMemberDescriptor.java:52(Compiled
Code)) 
> at freemarker/ext/beans/MemberAndArguments.invokeMethod(MemberAndArguments.java:48(Compiled
Code)) 
> at freemarker/ext/beans/OverloadedMethodsModel.exec(OverloadedMethodsModel.java:62(Compiled
Code)) 
> at freemarker/core/MethodCall._eval(MethodCall.java:62(Compiled Code)) 
> at freemarker/core/Expression.eval(Expression.java:78(Compiled Code)) 
> at freemarker/core/Assignment.accept(Assignment.java:70(Compiled Code)) 
> at freemarker/core/Environment.visit(Environment.java:312(Compiled Code)) 
> at freemarker/core/MixedContent.accept(MixedContent.java:62(Compiled Code)) 
> at freemarker/core/Environment.visitByHiddingParent(Environment.java:333(Compiled Code))

> at freemarker/core/IfBlock.accept(IfBlock.java:48(Compiled Code)) 
> at freemarker/core/Environment.visitByHiddingParent(Environment.java:333(Compiled Code))

> at freemarker/core/IfBlock.accept(IfBlock.java:48(Compiled Code)) 
> at freemarker/core/Environment.visit(Environment.java:312(Compiled Code)) 
> at freemarker/core/MixedContent.accept(MixedContent.java:62(Compiled Code)) 
> at freemarker/core/Environment.visitByHiddingParent(Environment.java:333(Compiled Code))

> at freemarker/core/Environment.visitAndTransform(Environment.java:413(Compiled Code))

> at freemarker/core/UnifiedCall.accept(UnifiedCall.java:108(Compiled Code)) 
> at freemarker/core/Environment.visit(Environment.java:312(Compiled Code)) 
> at freemarker/core/MixedContent.accept(MixedContent.java:62(Compiled Code)) 
> at freemarker/core/Environment.visit(Environment.java:312(Compiled Code)) 
> at freemarker/core/Environment.process(Environment.java:290(Compiled Code)) 
> at freemarker/template/Template.process(Template.java:312(Compiled Code)) 
> at org/apache/struts2/components/template/FreemarkerTemplateEngine.renderTemplate(FreemarkerTemplateEngine.java:158(Compiled
Code)) 
> at org/apache/struts2/components/UIBean.mergeTemplate(UIBean.java:584(Compiled Code))

> at org/apache/struts2/components/UIBean.end(UIBean.java:538(Compiled Code)) 
> at org/apache/struts2/views/jsp/ComponentTagSupport.doEndTag(ComponentTagSupport.java:42(Compiled
Code)) 
> at com/ibm/_jsp/_Scrn001045._jspx_meth_s_select_3(_Scrn001045.java:3410) 
> at com/ibm/_jsp/_Scrn001045._jspService(_Scrn001045.java:544) 
> at com/ibm/ws/jsp/runtime/HttpJspBase.service(HttpJspBase.java:99(Compiled Code)) 
> at javax/servlet/http/HttpServlet.service(HttpServlet.java:668(Compiled Code)) 
> at com/ibm/ws/webcontainer/servlet/ServletWrapper.service(ServletWrapper.java:1232(Compiled
Code)) 
> at com/ibm/ws/webcontainer/servlet/ServletWrapper.handleRequest(ServletWrapper.java:781(Compiled
Code)) 
> at com/ibm/ws/webcontainer/servlet/ServletWrapper.handleRequest(ServletWrapper.java:480(Compiled
Code)) 
> at com/ibm/ws/webcontainer/servlet/ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178(Compiled
Code)) 
> at com/ibm/wsspi/webcontainer/servlet/GenericServletWrapper.handleRequest(GenericServletWrapper.java:122(Compiled
Code)) 
> at com/ibm/ws/jsp/webcontainerext/AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:220(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:79(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterManager.doFilter(WebAppFilterManager.java:967(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107(Compiled
Code)) 
> at com/ibm/ws/webcontainer/webapp/WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:1385(Compiled
Code)) 
> at com/ibm/ws/webcontainer/webapp/WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:194(Compiled
Code)) 
> at org/apache/struts2/dispatcher/ServletDispatcherResult.doExecute(ServletDispatcherResult.java:164(Compiled
Code)) 
> at org/apache/struts2/dispatcher/StrutsResultSupport.execute(StrutsResultSupport.java:191(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.executeResult(DefaultActionInvocation.java:372(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:276(Compiled
Code)) 
> at com/tcs/channels/framework/comms/interceptor/XSSHandlerInterceptor.intercept(XSSHandlerInterceptor.java:193(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/validator/ValidationInterceptor.doIntercept(ValidationInterceptor.java:265(Compiled
Code)) 
> at org/apache/struts2/interceptor/validation/AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ParametersInterceptor.doIntercept(ParametersInterceptor.java:229(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ParametersInterceptor.doIntercept(ParametersInterceptor.java:229(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/interceptor/MultiselectInterceptor.intercept(MultiselectInterceptor.java:73(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/interceptor/CheckboxInterceptor.intercept(CheckboxInterceptor.java:91(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/interceptor/FileUploadInterceptor.intercept(FileUploadInterceptor.java:253(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/interceptor/debugging/DebuggingInterceptor.intercept(DebuggingInterceptor.java:256(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ChainingInterceptor.intercept(ChainingInterceptor.java:145(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/PrepareInterceptor.doIntercept(PrepareInterceptor.java:171(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/interceptor/ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/AliasInterceptor.intercept(AliasInterceptor.java:193(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at com/opensymphony/xwork2/interceptor/ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189(Compiled
Code)) 
> at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:245(Compiled
Code)) 
> at org/apache/struts2/impl/StrutsActionProxy.execute(StrutsActionProxy.java:54(Compiled
Code)) 
> at org/apache/struts2/dispatcher/Dispatcher.serviceAction(Dispatcher.java:575(Compiled
Code)) 
> at org/apache/struts2/dispatcher/ng/ExecuteOperations.executeAction(ExecuteOperations.java:81(Compiled
Code)) 
> at org/apache/struts2/dispatcher/ng/filter/StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:91(Compiled
Code)) 
> at com/tcs/channels/nbl/MDCFilter.doFilter(MDCFilter.java:66(Compiled Code)) 
> at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:91(Compiled
Code)) 
> at org/owasp/csrfguard/CsrfGuardFilter.doFilter(CsrfGuardFilter.java:75(Compiled Code))

> at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:91(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterManager.doFilter(WebAppFilterManager.java:967(Compiled
Code)) 
> at com/ibm/ws/webcontainer/filter/WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107(Compiled
Code)) 
> at com/ibm/ws/webcontainer/webapp/WebApp.handleRequest(WebApp.java:3928(Compiled Code))

> at com/ibm/ws/webcontainer/webapp/WebGroup.handleRequest(WebGroup.java:304(Compiled Code))

> at com/ibm/ws/webcontainer/WebContainer.handleRequest(WebContainer.java:1007(Compiled
Code)) 
> at com/ibm/ws/webcontainer/WSWebContainer.handleRequest(WSWebContainer.java:1817(Compiled
Code)) 
> at com/ibm/ws/webcontainer/channel/WCChannelLink.ready(WCChannelLink.java:200(Compiled
Code)) 
> at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463(Compiled
Code)) 
> at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.handleNewRequest(HttpInboundLink.java:530(Compiled
Code)) 
> at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.processRequest(HttpInboundLink.java:316(Compiled
Code)) 
> at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.ready(HttpInboundLink.java:287(Compiled
Code)) 
> at com/ibm/ws/tcp/channel/impl/NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214(Compiled
Code)) 
> at com/ibm/ws/tcp/channel/impl/NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113(Compiled
Code)) 
> at com/ibm/ws/tcp/channel/impl/AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175(Compiled
Code)) 
> at com/ibm/io/async/AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217(Compiled
Code)) 
> at com/ibm/io/async/AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161(Compiled
Code)) 
> at com/ibm/io/async/AsyncFuture.completed(AsyncFuture.java:138(Compiled Code)) 
> at com/ibm/io/async/ResultHandler.complete(ResultHandler.java:204(Compiled Code)) 
> at com/ibm/io/async/ResultHandler.runEventProcessingLoop(ResultHandler.java:775(Compiled
Code)) 
> at com/ibm/io/async/ResultHandler$2.run(ResultHandler.java:905(Compiled Code)) 
> at com/ibm/ws/util/ThreadPool$Worker.run(ThreadPool.java:1881(Compiled Code))
> {noformat}



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