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From "Anekant Jain (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (WW-4894) Issue while class loading
Date Wed, 29 Nov 2017 13:04:00 GMT

    [ 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 1:03 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 -
!screenshot-2.jpg!



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 -
!attachment-screenshot-2.jpg|thumbnail!


> 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}



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