--- a/hotspot/test/gc/class_unloading/TestCMSClassUnloadingDisabledHWM.java Mon Aug 04 15:04:45 2014 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,105 +0,0 @@
-/*
- * Copyright (c) 2014, 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
- * @key gc
- * @bug 8049831
- * @library /testlibrary /testlibrary/whitebox
- * @build TestCMSClassUnloadingDisabledHWM
- * @run main ClassFileInstaller sun.hotspot.WhiteBox
- * @run driver TestCMSClassUnloadingDisabledHWM
- * @summary Test that -XX:-CMSClassUnloadingEnabled will trigger a Full GC when more than MetaspaceSize metadata is allocated.
- */
-
-import com.oracle.java.testlibrary.OutputAnalyzer;
-import com.oracle.java.testlibrary.ProcessTools;
-import sun.hotspot.WhiteBox;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-
-public class TestCMSClassUnloadingDisabledHWM {
-
- private static OutputAnalyzer run(long metaspaceSize, long youngGenSize) throws Exception {
- ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
- "-Xbootclasspath/a:.",
- "-XX:+WhiteBoxAPI",
- "-XX:MetaspaceSize=" + metaspaceSize,
- "-Xmn" + youngGenSize,
- "-XX:+UseConcMarkSweepGC",
- "-XX:-CMSClassUnloadingEnabled",
- "-XX:+PrintHeapAtGC",
- "-XX:+PrintGCDetails",
- "AllocateBeyondMetaspaceSize",
- "" + metaspaceSize,
- "" + youngGenSize);
- return new OutputAnalyzer(pb.start());
- }
-
- public static void main(String args[]) throws Exception {
- long metaspaceSize = 32 * 1024 * 1024;
- long youngGenSize = 32 * 1024 * 1024;
-
- OutputAnalyzer out = run(metaspaceSize, youngGenSize);
-
- // -XX:-CMSClassUnloadingEnabled is used, so we expect a full GC instead of a concurrent cycle.
- out.shouldMatch(".*Full GC.*");
- out.shouldNotMatch(".*CMS Initial Mark.*");
- }
-}
-
-class AllocateBeyondMetaspaceSize {
- public static Object dummy;
-
- public static void main(String [] args) {
- if (args.length != 2) {
- throw new IllegalArgumentException("Usage: <MetaspaceSize> <YoungGenSize>");
- }
-
- long metaspaceSize = Long.parseLong(args[0]);
- long youngGenSize = Long.parseLong(args[1]);
-
- run(metaspaceSize, youngGenSize);
- }
-
- private static void run(long metaspaceSize, long youngGenSize) {
- WhiteBox wb = WhiteBox.getWhiteBox();
-
- long allocationBeyondMetaspaceSize = metaspaceSize * 2;
- long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize);
-
- triggerYoungGC(youngGenSize);
-
- wb.freeMetaspace(null, metaspace, metaspace);
- }
-
- private static void triggerYoungGC(long youngGenSize) {
- long approxAllocSize = 32 * 1024;
- long numAllocations = 2 * youngGenSize / approxAllocSize;
-
- for (long i = 0; i < numAllocations; i++) {
- dummy = new byte[(int)approxAllocSize];
- }
- }
-}