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

["Anekant Jain (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WW-4894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16270690#comment-16270690 ] 

Anekant Jain edited comment on WW-4894 at 11/29/17 1:02 PM:
------------------------------------------------------------

We are following up for Java update with IBM, we are facing difficulty because websphere uses it's supplement Java, not open JDK. 

Additional observation from thread dump is that, the issue occurs only while calling *doEndTag()* method of Jsp class file under high load condition.

PFA screenshot of JspClass file highlighting line of origination -
!attachment-screenshot-2.jpg|thumbnail!



was (Author: anekant87):
We are following up for Java update with IBM, we are facing difficulty because websphere uses it's supplement Java, not open JDK. 

Additional observation from thread dump is that, the issue occurs only while calling *doEndTag()* method of Jsp class file under high load condition.

PFA screenshot of JspClass file highlighting line of origination -
[^screenshot-2.png]


> 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: 2.4
>
>         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}



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)