diff --git a/src/share/vm/services/gcNotifier.cpp b/src/share/vm/services/gcNotifier.cpp index b282980e0aef57a4e3940f2558c1327a6efc2eeb..1670242019fef03082ff84c69040292d7dcdb633 100644 --- a/src/share/vm/services/gcNotifier.cpp +++ b/src/share/vm/services/gcNotifier.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -180,17 +180,43 @@ static Handle createGcInfo(GCMemoryManager *gcManager, GCStatInfo *gcStatInfo,TR } void GCNotifier::sendNotification(TRAPS) { + GCNotifier::sendNotificationInternal(THREAD); + // Clearing pending exception to avoid premature termination of + // the service thread + if (HAS_PENDING_EXCEPTION) { + CLEAR_PENDING_EXCEPTION; + } +} + +class NotificationMark : public StackObj { + // This class is used in GCNotifier::sendNotificationInternal to ensure that + // the GCNotificationRequest object is properly cleaned up, whatever path + // is used to exit the method. + GCNotificationRequest* _request; +public: + NotificationMark(GCNotificationRequest* r) { + _request = r; + } + ~NotificationMark() { + assert(_request != NULL, "Sanity check"); + delete _request; + } +}; + +void GCNotifier::sendNotificationInternal(TRAPS) { ResourceMark rm(THREAD); + HandleMark hm(THREAD); GCNotificationRequest *request = getRequest(); - if(request != NULL) { - Handle objGcInfo = createGcInfo(request->gcManager,request->gcStatInfo,THREAD); + if (request != NULL) { + NotificationMark nm(request); + Handle objGcInfo = createGcInfo(request->gcManager, request->gcStatInfo, THREAD); Handle objName = java_lang_String::create_from_platform_dependent_str(request->gcManager->name(), CHECK); Handle objAction = java_lang_String::create_from_platform_dependent_str(request->gcAction, CHECK); Handle objCause = java_lang_String::create_from_platform_dependent_str(request->gcCause, CHECK); klassOop k = Management::sun_management_GarbageCollectorImpl_klass(CHECK); - instanceKlassHandle gc_mbean_klass (THREAD, k); + instanceKlassHandle gc_mbean_klass(THREAD, k); instanceOop gc_mbean = request->gcManager->get_memory_manager_instance(THREAD); instanceHandle gc_mbean_h(THREAD, gc_mbean); @@ -213,11 +239,6 @@ void GCNotifier::sendNotification(TRAPS) { vmSymbols::createGCNotification_signature(), &args, CHECK); - if (HAS_PENDING_EXCEPTION) { - CLEAR_PENDING_EXCEPTION; - } - - delete request; } } diff --git a/src/share/vm/services/gcNotifier.hpp b/src/share/vm/services/gcNotifier.hpp index 7e0d8462e8f5cdcad342d52c569ea389ff195aa3..c26765e824e86eccfeb192d81cba0e3178532ea9 100644 --- a/src/share/vm/services/gcNotifier.hpp +++ b/src/share/vm/services/gcNotifier.hpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -60,6 +60,7 @@ private: static GCNotificationRequest *last_request; static void addRequest(GCNotificationRequest *request); static GCNotificationRequest *getRequest(); + static void sendNotificationInternal(TRAPS); public: static void pushNotification(GCMemoryManager *manager, const char *action, const char *cause); static bool has_event();