1 /*
2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 /**
26 * @test
27 * @summary Test OOME in due to classloader leak
28 * @requires vm.gc.Shenandoah
29 * @library /test/lib
30 * @run driver TestClassLoaderLeak
31 */
32
33 import java.util.*;
34 import java.io.*;
35 import java.nio.*;
36 import java.nio.file.*;
37
38 import jdk.test.lib.process.OutputAnalyzer;
39 import jdk.test.lib.process.ProcessTools;
40
41 public class TestClassLoaderLeak {
42
43 static final int SIZE = 1 * 1024 * 1024;
44 static final int COUNT = 128;
45
46 static volatile Object sink;
47
48 static class Dummy {
49 static final int[] PAYLOAD = new int[SIZE];
50 }
106 analyzer.shouldNotContain("java.lang.OutOfMemoryError");
107 analyzer.shouldContain("All good");
108 } else {
109 analyzer.shouldHaveExitValue(1);
110 analyzer.shouldContain("java.lang.OutOfMemoryError");
111 analyzer.shouldNotContain("All good");
112 }
113 }
114
115 public static void main(String[] args) throws Exception {
116 if (args.length > 0) {
117 String classDir = TestClassLoaderLeak.class.getProtectionDomain().getCodeSource().getLocation().getPath();
118 for (int c = 0; c < COUNT; c++) {
119 load(classDir);
120 }
121 System.out.println("All good");
122 return;
123 }
124
125 String[][][] modeHeuristics = new String[][][] {
126 {{"satb"}, {"adaptive", "compact", "static", "aggressive"}},
127 {{"iu"}, {"adaptive", "aggressive"}},
128 {{"passive"}, {"passive"}}
129 };
130
131 for (String[][] mh : modeHeuristics) {
132 String mode = mh[0][0];
133 String[] heuristics = mh[1];
134 for (String h : heuristics) {
135 // Forceful enabling should work
136 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloading");
137 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloadingWithConcurrentMark");
138
139 // Even when concurrent unloading is disabled, Full GC has to recover
140 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloading", "-XX:-ClassUnloadingWithConcurrentMark");
141
142 // Should OOME when unloading forcefully disabled, even if local flags try to enable it back
143 failWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:-ClassUnloading");
144 failWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:-ClassUnloading", "-XX:+ClassUnloadingWithConcurrentMark");
145 }
146 }
147 }
148 }
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1 /*
2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
3 * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 /**
27 * @test
28 * @summary Test OOME in due to classloader leak
29 * @requires vm.gc.Shenandoah
30 * @library /test/lib
31 * @run driver/timeout=600 TestClassLoaderLeak
32 */
33
34 import java.util.*;
35 import java.io.*;
36 import java.nio.*;
37 import java.nio.file.*;
38
39 import jdk.test.lib.process.OutputAnalyzer;
40 import jdk.test.lib.process.ProcessTools;
41
42 public class TestClassLoaderLeak {
43
44 static final int SIZE = 1 * 1024 * 1024;
45 static final int COUNT = 128;
46
47 static volatile Object sink;
48
49 static class Dummy {
50 static final int[] PAYLOAD = new int[SIZE];
51 }
107 analyzer.shouldNotContain("java.lang.OutOfMemoryError");
108 analyzer.shouldContain("All good");
109 } else {
110 analyzer.shouldHaveExitValue(1);
111 analyzer.shouldContain("java.lang.OutOfMemoryError");
112 analyzer.shouldNotContain("All good");
113 }
114 }
115
116 public static void main(String[] args) throws Exception {
117 if (args.length > 0) {
118 String classDir = TestClassLoaderLeak.class.getProtectionDomain().getCodeSource().getLocation().getPath();
119 for (int c = 0; c < COUNT; c++) {
120 load(classDir);
121 }
122 System.out.println("All good");
123 return;
124 }
125
126 String[][][] modeHeuristics = new String[][][] {
127 {{"satb"}, {"adaptive", "compact", "static", "aggressive"}},
128 {{"iu"}, {"adaptive", "aggressive"}},
129 {{"passive"}, {"passive"}},
130 {{"generational"}, {"adaptive"}}
131 };
132
133 for (String[][] mh : modeHeuristics) {
134 String mode = mh[0][0];
135 String[] heuristics = mh[1];
136 for (String h : heuristics) {
137 // Forceful enabling should work
138 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloading");
139 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloadingWithConcurrentMark");
140
141 // Even when concurrent unloading is disabled, Full GC has to recover
142 passWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:+ClassUnloading", "-XX:-ClassUnloadingWithConcurrentMark");
143
144 // Should OOME when unloading forcefully disabled, even if local flags try to enable it back
145 failWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:-ClassUnloading");
146 failWith("-XX:ShenandoahGCMode=" + mode, "-XX:ShenandoahGCHeuristics=" + h, "-XX:-ClassUnloading", "-XX:+ClassUnloadingWithConcurrentMark");
147 }
148 }
149 }
150 }
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