8023390: Test java/net/NetworkInterface/MemLeakTest.java failed with the latest jdk8 build
Summary: Removing the test as it is unreliable and fails intermittently
Reviewed-by: chegar
--- a/jdk/test/java/net/NetworkInterface/MemLeakTest.java Tue Oct 22 12:04:19 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,108 +0,0 @@
-/*
- * Copyright (c) 2013, 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 8022584
- * @summary Some NetworkInterface methods can leak native memory
- * @run main/othervm/timeout=700 MemLeakTest
- */
-
-/* Note: the test can cause a memory leak that's why othervm option is required
- */
-
-import java.io.BufferedReader;
-import java.io.FileReader;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.util.Collection;
-import java.util.Collections;
-
-public class MemLeakTest {
-
- /**
- * Memory leak is assumed, if application consumes more than specified amount of memory during its execution.
- * The number is given in Kb.
- */
- private static final long MEM_LEAK_THRESHOLD = 32 * 1024; // 32Mb
-
- public static void main(String[] args)
- throws Exception {
-
- if (!System.getProperty("os.name").equals("Linux")) {
- System.out.println("Test only runs on Linux");
- return;
- }
-
- // warm up
- accessNetInterfaces(3);
-
- long vMemBefore = getVMemSize();
- accessNetInterfaces(500_000);
- long vMemAfter = getVMemSize();
-
- long vMemDelta = vMemAfter - vMemBefore;
- if (vMemDelta > MEM_LEAK_THRESHOLD) {
- throw new Exception("FAIL: Virtual memory usage increased by " + vMemDelta + "Kb " +
- "(greater than " + MEM_LEAK_THRESHOLD + "Kb)");
- }
-
- System.out.println("PASS: Virtual memory usage increased by " + vMemDelta + "Kb " +
- "(not greater than " + MEM_LEAK_THRESHOLD + "Kb)");
- }
-
- private static void accessNetInterfaces(int times) {
- try {
- Collection<NetworkInterface> interfaces =
- Collections.list(NetworkInterface.getNetworkInterfaces());
- for (int i = 0; i != times; ++i) {
- for (NetworkInterface netInterface : interfaces) {
- netInterface.getMTU();
- netInterface.isLoopback();
- netInterface.isUp();
- netInterface.isPointToPoint();
- netInterface.supportsMulticast();
- }
- }
- } catch (SocketException ignore) {}
- }
-
- /**
- * Returns size of virtual memory allocated to the process in Kb.
- * Linux specific. On other platforms and in case of any errors returns 0.
- */
- private static long getVMemSize() {
-
- // Refer to the Linux proc(5) man page for details about /proc/self/stat file
- //
- // In short, this file contains status information about the current process
- // written in one line. The fields are separated with spaces.
- // The 23rd field is defined as 'vsize %lu Virtual memory size in bytes'
-
- try (FileReader fileReader = new FileReader("/proc/self/stat");
- BufferedReader bufferedReader = new BufferedReader(fileReader)) {
- String line = bufferedReader.readLine();
- return Long.parseLong(line.split(" ")[22]) / 1024;
- } catch (Exception ignore) {}
- return 0;
- }
-}