77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
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/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.util.logging.*;
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public class AnonLoggerWeakRefLeak {
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public static int DEFAULT_LOOP_TIME = 60; // time is in seconds
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public static void main(String[] args) {
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int loop_time = 0;
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int max_loop_time = DEFAULT_LOOP_TIME;
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if (args.length == 0) {
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System.out.println("INFO: using default time of "
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+ max_loop_time + " seconds.");
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} else {
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try {
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max_loop_time = Integer.parseInt(args[0]);
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} catch (NumberFormatException nfe) {
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System.err.println("Error: '" + args[0]
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+ "': is not a valid seconds value.");
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System.err.println("Usage: AnonLoggerWeakRefLeak [seconds]");
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System.exit(1);
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}
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}
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long count = 0;
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long now = 0;
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long startTime = System.currentTimeMillis();
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while (now < (startTime + (max_loop_time * 1000))) {
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if ((count % 1000) == 0) {
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// Print initial call count to let caller know that
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// we're up and running and then periodically
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System.out.println("INFO: call count = " + count);
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}
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for (int i = 0; i < 100; i++) {
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// this Logger call is leaking a WeakReference in Logger.kids
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java.util.logging.Logger.getAnonymousLogger();
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count++;
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}
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try {
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// delay for 1/10 of a second to avoid CPU saturation
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Thread.sleep(100);
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} catch (InterruptedException ie) {
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// ignore any exceptions
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}
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now = System.currentTimeMillis();
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}
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System.out.println("INFO: final loop count = " + count);
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}
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}
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