[jira] [Commented] (WW-4894) Issue while class loading

["Yasser Zamani (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WW-4894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16628556#comment-16628556 ] 

Yasser Zamani commented on WW-4894:
-----------------------------------

Hi [~Anekant87], any update on this? Thanks.

> 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: 2.3.36
>
>         Attachments: screenshot-1.png, screenshot-2.png
>
>
> 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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