How to fix this struck thread issue

Hello Chennamrk!

 Greetings. Below is the stack trace of your STUCK Thread. If you notice it's stuck on the '

weblogic.utils.collections.ArrayMap.internalRemove(ArrayMap.java:170)'. Can you check in Weblogic bug database whether any issues reported around this API? In which version of Weblogic you are currently running your application? 

stackTrace:
java.lang.Thread.State: RUNNABLE
at weblogic.utils.collections.ArrayMap.internalRemove(ArrayMap.java:170)
at weblogic.utils.collections.ArrayMap.remove(ArrayMap.java:157)
at weblogic.servlet.internal.ResponseHeaders.unsetHeader(ResponseHeaders.java:343)
at weblogic.servlet.internal.ServletResponseImpl.writeHeaders(ServletResponseImpl.java:1404)
at weblogic.servlet.internal.ServletOutputStreamImpl.sendHeaders(ServletOutputStreamImpl.java:325)
at weblogic.servlet.internal.ServletOutputStreamImpl.flush(ServletOutputStreamImpl.java:150)
at org.glassfish.jersey.servlet.internal.ResponseWriter$NonCloseableOutputStreamWrapper.flush(ResponseWriter.java:330)
at org.glassfish.jersey.message.internal.CommittingOutputStream.flush(CommittingOutputStream.java:292)
at org.glassfish.jersey.message.internal.OutboundMessageContext.close(OutboundMessageContext.java:838)
at org.glassfish.jersey.server.ContainerResponse.close(ContainerResponse.java:412)
at org.glassfish.jersey.server.ServerRuntime$Responder.writeResponse(ServerRuntime.java:784)
at org.glassfish.jersey.server.ServerRuntime$Responder.processResponse(ServerRuntime.java:444)
at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:434)
at org.glassfish.jersey.server.ServerRuntime$AsyncResponder$3.run(ServerRuntime.java:934)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:966)
at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:922)
at com.bea.wli.sb.transports.http.wls.rest.JerseyInboundMessageContext.close(JerseyInboundMessageContext.java:234)
at com.bea.wli.sb.transports.Util$InboundTransportMessageContextWrapper.close(Util.java:590)
at com.bea.wli.sb.transports.TransportDispatcherClient$CallbackAdapter.closeInboundTransportContext(TransportDispatcherClient.java:246)
at com.bea.wli.sb.transports.TransportDispatcherClient$CallbackAdapter.handleResponse(TransportDispatcherClient.java:215)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.InboundResponseCharsetHandler.handleResponse(InboundResponseCharsetHandler.java:98)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.UpdateInboundTransportStatistics.handleResponse(UpdateInboundTransportStatistics.java:93)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.InboundMessageContentHandler.handleResponse(InboundMessageContentHandler.java:192)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.UpdateInboundOperationalStatistics.handleResponse(UpdateInboundOperationalStatistics.java:85)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.InboundWsdlRestHandler.handleResponse(InboundWsdlRestHandler.java:248)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler.handleResponse(AbstractHandler.java:137)
at com.bea.wli.sb.service.handlerchain.handlers.ServiceInvoker.handleResponse(ServiceInvoker.java:179)
at com.bea.wli.sb.service.handlerchain.handlers.AbstractHandler$1.handleResponse(AbstractHandler.java:289)
at com.bea.wli.sb.context.PipelineReplyClient.sendResponse(PipelineReplyClient.java:157)
at com.bea.wli.sb.context.PipelineReplyClient.reply(PipelineReplyClient.java:101)
at com.bea.wli.sb.pipeline.RouterContext.reply(RouterContext.java:355)
at com.bea.wli.sb.pipeline.MessageProcessor.finishProcessing(MessageProcessor.java:418)
at com.bea.wli.sb.pipeline.RouterCallback.handleResponse(RouterCallback.java:115)
at com.bea.wli.sb.pipeline.RouterCallback.run(RouterCallback.java:204)
at weblogic.work.WorkAreaContextWrap.run(WorkAreaContextWrap.java:60)
at com.bea.alsb.platform.weblogic.WlsWorkManagerServiceImpl$WorkAdapter$2.run(WlsWorkManagerServiceImpl.java:274)
at com.bea.alsb.platform.weblogic.WlsWorkManagerServiceImpl$WorkAdapter$2.run(WlsWorkManagerServiceImpl.java:272)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at com.bea.alsb.platform.weblogic.WlsWorkManagerServiceImpl$WorkAdapter.run(WlsWorkManagerServiceImpl.java:272)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:678)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:652)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)

Hello Chennamark!

 Looks like you are running on a very old version of weblogic. Because with in the weblogic.utils.collections  package, I no longer see the 'ArrayMap' object.