2 Replies Latest reply on Nov 9, 2012 9:12 AM by Piergiovanni Pier

    high number of HTTP Threads in waiting on monitor state

    Piergiovanni Pier Newbie

      In Thread Dump most of threads are in following state : java.lang.Thread.State: BLOCKED (on object monitor)

      The stack trace is always on :

       

      "http-10.208.176.104-8080-52" daemon prio=3 tid=0x00000001028d4000 nid=0xbd waiting for monitor entry [0xfffffffe516fa000]

         java.lang.Thread.State: BLOCKED (on object monitor)

              at java.lang.Class.forName0(Native Method)

              at java.lang.Class.forName(Class.java:247)

              at org.mvel2.optimizers.AbstractOptimizer.tryStaticAccess(AbstractOptimizer.java:76)

              at org.mvel2.compiler.PropertyVerifier.getBeanProperty(PropertyVerifier.java:263)

              at org.mvel2.compiler.PropertyVerifier.analyze(PropertyVerifier.java:117)

              at org.mvel2.compiler.ExpressionCompiler.verify(ExpressionCompiler.java:381)

              at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:273)

              at org.mvel2.util.ParseTools.subCompileExpression(ParseTools.java:2126)

              at org.mvel2.optimizers.impl.refl.collection.ExprValueAccessor.<init>(ExprValueAccessor.java:40)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer._getAccessor(ReflectiveAccessorOptimizer.java:1188)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer._getAccessor(ReflectiveAccessorOptimizer.java:1132)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeCollection(ReflectiveAccessorOptimizer.java:1203)

              at org.mvel2.ast.InlineCollectionNode.<init>(InlineCollectionNode.java:53)

              at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:1207)

              at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:128)

              at org.mvel2.util.ParseTools.subCompileExpression(ParseTools.java:2137)

              at org.mvel2.ast.WithNode.compileWithExpressions(WithNode.java:225)

              at org.mvel2.optimizers.impl.refl.nodes.WithAccessor.<init>(WithAccessor.java:27)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getWithProperty(ReflectiveAccessorOptimizer.java:454)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:383)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileConstructor(ReflectiveAccessorOptimizer.java:1298)

              at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeObjectCreation(ReflectiveAccessorOptimizer.java:1221)

              at org.mvel2.ast.NewObjectNode.getReducedValueAccelerated(NewObjectNode.java:214)

              at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:42)

              at org.mvel2.optimizers.impl.refl.collection.ExprValueAccessor.getValue(ExprValueAccessor.java:63)

              at org.mvel2.optimizers.impl.refl.collection.ListCreator.getValue(ListCreator.java:37)

              at org.mvel2.optimizers.impl.refl.collection.MapCreator.getValue(MapCreator.java:39)

              at org.mvel2.ast.InlineCollectionNode.getReducedValueAccelerated(InlineCollectionNode.java:82)

              at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)

              at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:123)

              at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:116)

              at org.mvel2.MVEL.executeExpression(MVEL.java:969)

              at org.jbpm.task.service.TaskService.eval(TaskService.java:327)

              at org.jbpm.task.service.TaskService.initialize(TaskService.java:134)

              at org.jbpm.task.service.TaskService.initialize(TaskService.java:101)

              at org.jbpm.task.service.TaskService.<init>(TaskService.java:79)

               at it.mail.omp.bpm.core.KnowledgeConfigurator.createTaskService(KnowledgeConfigurator.java:74)

              at it.mail.omp.bpm.core.KnowledgeUtil.getSession(KnowledgeUtil.java:270)

              at it.mail.omp.bpm.core.KnowledgeUtil.getSession(KnowledgeUtil.java:233)

              at it.mail.omp.bpm.core.KnowledgeUtil.startProcess(KnowledgeUtil.java:160)

              at it.mail.omp.bpm.core.OMPBPM.startBpmProcess(OMPBPM.java:77)

              at it.mail.omp.bpm.process.impl.AccettBPM.startProcess(AccettBPM.java:25)

              at it.mail.omp.servlet.ws.impl.AccettServiceSOAP.accett(AccettServiceSOAP.java:51)

              at sun.reflect.GeneratedMethodAccessor343.invoke(Unknown Source)

              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

              at java.lang.reflect.Method.invoke(Method.java:597)

              at org.jboss.wsf.container.jboss50.invocation.InvocationHandlerJSE.invoke(InvocationHandlerJSE.java:117)

              at org.jboss.ws.core.server.ServiceEndpointInvoker.invoke(ServiceEndpointInvoker.java:241)

              at org.jboss.wsf.stack.jbws.RequestHandlerImpl.processRequest(RequestHandlerImpl.java:470)

              at org.jboss.wsf.stack.jbws.RequestHandlerImpl.handleRequest(RequestHandlerImpl.java:294)

              at org.jboss.wsf.stack.jbws.RequestHandlerImpl.doPost(RequestHandlerImpl.java:203)

              at org.jboss.wsf.stack.jbws.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:129)

              at org.jboss.wsf.common.servlet.AbstractEndpointServlet.service(AbstractEndpointServlet.java:85)

              at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

              at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)

              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

              at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183)

              at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95)

              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)

              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)

              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

              at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)

              at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:566)

              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

              at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.internalProcess(ActiveRequestResponseCacheValve.java:74)

              at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:47)

              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)

              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)

              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:599)

              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451)

              at java.lang.Thread.run(Thread.java:662)

       

      my problem is MVEL2 ? In this state the response time is long ......