| /* |
| * Copyright (c) 2017, 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. |
| * |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8175015 |
| * @summary FileSystemView.isDrive(File) memory leak on "C:\" file reference |
| * @modules java.desktop/sun.awt.shell |
| * @requires (os.family == "windows") |
| * @run main/othervm -Xmx8m FileSystemViewMemoryLeak |
| */ |
| import java.io.File; |
| import java.text.NumberFormat; |
| import javax.swing.filechooser.FileSystemView; |
| |
| public class FileSystemViewMemoryLeak { |
| |
| public static void main(String[] args) { |
| test(); |
| } |
| |
| private static void test() { |
| |
| File root = new File("C:\\"); |
| System.out.println("Root Exists: " + root.exists()); |
| System.out.println("Root Absolute Path: " + root.getAbsolutePath()); |
| System.out.println("Root Is Directory?: " + root.isDirectory()); |
| |
| FileSystemView fileSystemView = FileSystemView.getFileSystemView(); |
| NumberFormat nf = NumberFormat.getNumberInstance(); |
| |
| int iMax = 50000; |
| long lastPercentFinished = 0L; |
| for (int i = 0; i < iMax; i++) { |
| |
| long percentFinished = Math.round(((i * 1000d) / (double) iMax)); |
| |
| if (lastPercentFinished != percentFinished) { |
| double pf = ((double) percentFinished) / 10d; |
| String pfMessage = String.valueOf(pf) + " % (" + i + "/" + iMax + ")"; |
| |
| long totalMemory = Runtime.getRuntime().totalMemory() / 1024; |
| long freeMemory = Runtime.getRuntime().freeMemory() / 1024; |
| long maxMemory = Runtime.getRuntime().maxMemory() / 1024; |
| String memMessage = "[Memory Used: " + nf.format(totalMemory) + |
| " kb Free=" + nf.format(freeMemory) + |
| " kb Max: " + nf.format(maxMemory) + " kb]"; |
| |
| System.out.println(pfMessage + " " + memMessage); |
| lastPercentFinished = percentFinished; |
| } |
| |
| boolean floppyDrive = fileSystemView.isFloppyDrive(root); |
| boolean computerNode = fileSystemView.isComputerNode(root); |
| |
| // "isDrive()" seems to be the painful method... |
| boolean drive = fileSystemView.isDrive(root); |
| } |
| } |
| } |
| |