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Java example source code file (heapdump.js)
The heapdump.js Java example source code/* * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * This source code is provided to illustrate the usage of a given feature * or technique and has been deliberately simplified. Additional steps * required for a production-quality application, such as security checks, * input validation and proper error handling, might not be present in * this sample code. */ /* * This file defines heapdump function to heap dump * in binary format. User can call this function * based on events. For example, a timer thread can * keep checking heap threshold and depending on * specific expected threshold value, it can call * heapdump to dump the keep. File name can contain * timestamp so that multiple heapdumps can be generated * for the same process. */ /** * Function to dump heap in binary format. * * @param file heap dump file name [optional] */ function heapdump(file) { // no file specified, show file open dialog if (file == undefined) { file = fileDialog(); // check whether user cancelled the dialog if (file == null) return; } /* * Get HotSpotDiagnostic MBean and wrap it as convenient * script wrapper using 'mbean' function. Instead of using * MBean proxies 'mbean' function creates a script wrapper * that provides similar convenience but uses explicit * invocation behind the scene. This implies that mbean * wrapper would the same for dynamic MBeans as well. */ var diagBean = mbean("com.sun.management:type=HotSpotDiagnostic"); // dump the heap in the file diagBean.dumpHeap(file, true); } Other Java examples (source code examples)Here is a short list of links related to this Java heapdump.js source code file: |
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