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/*
* 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);
}
}
}
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