/* * Copyright (c) 2005, 2006, 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 * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.lang.management; import javax.management.openmbean.CompositeData; import sun.management.MonitorInfoCompositeData; /** * Information about an object monitor lock. An object monitor is locked * when entering a synchronization block or method on that object. * *
** * @param cd CompositeData representing a MonitorInfo * * @throws IllegalArgumentException if cd does not * represent a MonitorInfo with the attributes described * above. * @return a MonitorInfo object represented * by cd if cd is not null; * null otherwise. */ public static MonitorInfo from(CompositeData cd) { if (cd == null) { return null; } if (cd instanceof MonitorInfoCompositeData) { return ((MonitorInfoCompositeData) cd).getMonitorInfo(); } else { MonitorInfoCompositeData.validateCompositeData(cd); String className = MonitorInfoCompositeData.getClassName(cd); int identityHashCode = MonitorInfoCompositeData.getIdentityHashCode(cd); int stackDepth = MonitorInfoCompositeData.getLockedStackDepth(cd); StackTraceElement stackFrame = MonitorInfoCompositeData.getLockedStackFrame(cd); return new MonitorInfo(className, identityHashCode, stackDepth, stackFrame); } } }*
** *Attribute Name *Type ** *lockedStackFrame *CompositeData as specified in the * stackTrace * attribute defined in the {@link ThreadInfo#from * ThreadInfo.from} method. * ** *lockedStackDepth *java.lang.Integer *