163 lines
6.7 KiB
Java
163 lines
6.7 KiB
Java
/*
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* Copyright (c) 2022, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test Loading CDS archived heap objects into ParallelGC
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* @bug 8274788
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* @requires vm.cds
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* @requires vm.gc.Parallel
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* @requires vm.gc.G1
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*
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* @comment don't run this test if any -XX::+Use???GC options are specified, since they will
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* interfere with the test.
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* @requires vm.gc == null
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*
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* @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
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* @compile test-classes/Hello.java
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* @run driver TestParallelGCWithCDS
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*/
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// Below is exactly the same as above, except:
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// - requires vm.bits == "64"
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// - extra argument "false"
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/*
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* @test Loading CDS archived heap objects into ParallelGC
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* @bug 8274788 8341371
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* @requires vm.cds
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* @requires vm.gc.Parallel
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* @requires vm.gc.G1
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* @requires vm.bits == "64"
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*
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* @comment don't run this test if any -XX::+Use???GC options are specified, since they will
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* interfere with the test.
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* @requires vm.gc == null
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*
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* @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
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* @compile test-classes/Hello.java
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* @run driver TestParallelGCWithCDS false
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*/
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import jdk.test.lib.Platform;
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import jdk.test.lib.process.OutputAnalyzer;
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public class TestParallelGCWithCDS {
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public final static String HELLO = "Hello World";
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static String helloJar;
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static boolean useCompressedOops = true;
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public static void main(String... args) throws Exception {
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helloJar = JarBuilder.build("hello", "Hello");
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if (args.length > 0 && args[0].equals("false")) {
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useCompressedOops = false;
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}
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// Check if we can use ParallelGC during dump time, or run time, or both.
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test(false, true);
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test(true, false);
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test(true, true);
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// With G1 we usually have 2 heap regions. To increase test coverage, we can have 3 heap regions
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// by using "-Xmx256m -XX:ObjectAlignmentInBytes=64"
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if (Platform.is64bit()) test(false, true, true);
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}
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final static String G1 = "-XX:+UseG1GC";
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final static String Parallel = "-XX:+UseParallelGC";
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static void test(boolean dumpWithParallel, boolean execWithParallel) throws Exception {
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test(dumpWithParallel, execWithParallel, false);
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}
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static void test(boolean dumpWithParallel, boolean execWithParallel, boolean useSmallRegions) throws Exception {
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String dumpGC = dumpWithParallel ? Parallel : G1;
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String execGC = execWithParallel ? Parallel : G1;
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String small1 = useSmallRegions ? "-Xmx256m" : "-showversion";
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String small2 = useSmallRegions ? "-XX:ObjectAlignmentInBytes=64" : "-showversion";
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String errMsg = "Cannot use CDS heap data. Selected GC not compatible -XX:-UseCompressedOops";
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String coops = useCompressedOops ? "-XX:+UseCompressedOops" : "-XX:-UseCompressedOops";
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OutputAnalyzer out;
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System.out.println("0. Dump with " + dumpGC);
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out = TestCommon.dump(helloJar,
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new String[] {"Hello"},
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dumpGC,
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small1,
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small2,
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coops,
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"-Xlog:cds");
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out.shouldContain("Dumping shared data to file:");
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out.shouldHaveExitValue(0);
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System.out.println("1. Exec with " + execGC);
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out = TestCommon.exec(helloJar,
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execGC,
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small1,
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small2,
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coops,
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"-Xlog:cds",
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"Hello");
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out.shouldContain(HELLO);
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out.shouldNotContain(errMsg);
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out.shouldHaveExitValue(0);
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int n = 2;
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if (!dumpWithParallel && execWithParallel) {
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// We dumped with G1, so we have an archived heap. At exec time, try to load them into
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// a small ParallelGC heap that may be too small.
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String[] sizes = {
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"4m", // usually this will success load the archived heap
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"2m", // usually this will fail to load the archived heap, but app can launch
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// or fail with "GC triggered before VM initialization completed"
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"1m" // usually this will cause VM launch to fail with "Too small maximum heap"
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};
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for (String sz : sizes) {
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String xmx = "-Xmx" + sz;
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System.out.println("=======\n" + n + ". Exec with " + execGC + " " + xmx);
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out = TestCommon.exec(helloJar,
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execGC,
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small1,
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small2,
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xmx,
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coops,
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"-Xlog:cds",
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"Hello");
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if (out.getExitValue() == 0) {
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out.shouldContain(HELLO);
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out.shouldNotContain(errMsg);
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} else {
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String pattern = "((Too small maximum heap)" +
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"|(GC triggered before VM initialization completed)" +
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"|(CDS archive has aot-linked classes but the archived heap objects cannot be loaded)" +
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"|(Initial heap size set to a larger value than the maximum heap size)" +
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"|(java.lang.OutOfMemoryError)" +
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"|(Error: A JNI error has occurred, please check your installation and try again))";
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out.shouldMatch(pattern);
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out.shouldNotHaveFatalError();
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}
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n++;
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}
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}
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}
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}
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