95 lines
3.5 KiB
Java
95 lines
3.5 KiB
Java
/*
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* Copyright (c) 2017, 2020, 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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/*
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* @test
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* @bug 8175015
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* @summary FileSystemView.isDrive(File) memory leak on "C:\" file reference
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* @modules java.desktop/sun.awt.shell
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* @requires (os.family == "windows")
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* @run main/othervm/timeout=320 -Xmx8m FileSystemViewMemoryLeak
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*/
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import java.io.File;
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import java.text.NumberFormat;
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import java.util.concurrent.TimeUnit;
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import javax.swing.filechooser.FileSystemView;
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public class FileSystemViewMemoryLeak {
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public static void main(String[] args) {
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test();
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}
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// Will run the test no more than 300 seconds
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static long endtime = System.nanoTime() + TimeUnit.SECONDS.toNanos(300);
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private static void test() {
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File root = new File("C:\\");
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System.out.println("Root Exists: " + root.exists());
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System.out.println("Root Absolute Path: " + root.getAbsolutePath());
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System.out.println("Root Is Directory?: " + root.isDirectory());
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FileSystemView fileSystemView = FileSystemView.getFileSystemView();
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NumberFormat nf = NumberFormat.getNumberInstance();
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int iMax = 50000;
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long lastPercentFinished = 0L;
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for (int i = 0; i < iMax; i++) {
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if (isComplete()) {
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System.out.println("Time is over");
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return;
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}
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long percentFinished = Math.round(((i * 1000d) / (double) iMax));
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if (lastPercentFinished != percentFinished) {
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double pf = ((double) percentFinished) / 10d;
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String pfMessage = String.valueOf(pf) + " % (" + i + "/" + iMax + ")";
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long totalMemory = Runtime.getRuntime().totalMemory() / 1024;
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long freeMemory = Runtime.getRuntime().freeMemory() / 1024;
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long maxMemory = Runtime.getRuntime().maxMemory() / 1024;
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String memMessage = "[Memory Used: " + nf.format(totalMemory) +
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" kb Free=" + nf.format(freeMemory) +
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" kb Max: " + nf.format(maxMemory) + " kb]";
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System.out.println(pfMessage + " " + memMessage);
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lastPercentFinished = percentFinished;
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}
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boolean floppyDrive = fileSystemView.isFloppyDrive(root);
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boolean computerNode = fileSystemView.isComputerNode(root);
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// "isDrive()" seems to be the painful method...
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boolean drive = fileSystemView.isDrive(root);
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}
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}
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private static boolean isComplete() {
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return endtime - System.nanoTime() < 0;
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}
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}
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