[jboss-user] [jBPM] - high number of HTTP Threads in waiting on monitor state

Piergiovanni Gualotto [https://community.jboss.org/people/pgualotto] created the discussion "high number of HTTP Threads in waiting on monitor state" To view the discussion, visit: https://community.jboss.org/message/758422#758422 -------------------------------------------------------------- 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.AccettazioneInviiBPM.startProcess(AccettazioneInviiBPM.java:25)         at it.mail.omp.servlet.ws.impl.AccettazioneServiceSOAP.accettazioneInvii(AccettazioneServiceSOAP.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 ...... -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/758422#758422] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]