author | lkorinth |
Wed, 13 Nov 2019 11:37:29 +0100 | |
changeset 59053 | ba6c248cae19 |
parent 54034 | fa9b16328e6a |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 2019, 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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/* |
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* @test |
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* @bug 8022865 |
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* @summary Tests for different combination of UseCompressedOops options |
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* @library /test/lib |
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* @modules java.base/jdk.internal.misc |
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* java.management |
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* @build sun.hotspot.WhiteBox |
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission |
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* @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. UseCompressedOops |
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*/ |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import jdk.test.lib.Platform; |
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import jdk.test.lib.process.ProcessTools; |
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import jdk.test.lib.process.OutputAnalyzer; |
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import sun.hotspot.gc.GC; |
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|
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import sun.hotspot.code.Compiler; |
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public class UseCompressedOops { |
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public static void main(String[] args) throws Exception { |
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testCompressedOopsModesGCs(); |
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if (!Platform.isOSX() && !Platform.isAix()) { |
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testCompressedOopsModesGCs("-XX:+UseLargePages"); |
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} |
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} |
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public static void testCompressedOopsModesGCs(String... flags) throws Exception { |
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ArrayList<String> args = new ArrayList<>(); |
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Collections.addAll(args, flags); |
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// Test default. |
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testCompressedOopsModes(args); |
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// Test GCs. |
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testCompressedOopsModes(args, "-XX:+UseG1GC"); |
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testCompressedOopsModes(args, "-XX:+UseSerialGC"); |
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testCompressedOopsModes(args, "-XX:+UseParallelGC"); |
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testCompressedOopsModes(args, "-XX:+UseParallelOldGC"); |
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if (GC.Shenandoah.isSupported()) { |
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testCompressedOopsModes(args, "-XX:+UnlockExperimentalVMOptions", "-XX:+UseShenandoahGC"); |
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} |
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} |
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public static void testCompressedOopsModes(ArrayList<String> flags1, String... flags2) throws Exception { |
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ArrayList<String> args = new ArrayList<>(); |
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args.addAll(flags1); |
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Collections.addAll(args, flags2); |
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|
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if (Platform.is64bit()) { |
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// Explicitly turn off compressed oops |
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testCompressedOops(args, "-XX:-UseCompressedOops", "-Xmx32m") |
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.shouldNotContain("Compressed Oops") |
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.shouldHaveExitValue(0); |
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// Compressed oops should be on by default |
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testCompressedOops(args, "-Xmx32m") |
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.shouldContain("Compressed Oops mode") |
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.shouldHaveExitValue(0); |
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// Explicly enabling compressed oops |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32m") |
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.shouldContain("Compressed Oops mode") |
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.shouldHaveExitValue(0); |
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|
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// Skip the following seven test cases if we're on OSX, Windows, or Solaris. |
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// |
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// OSX doesn't seem to care about HeapBaseMinAddress. Windows memory |
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// locations are affected by ASLR. Solaris puts the heap way up, |
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// forcing different behaviour. |
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if (!Platform.isOSX() && !Platform.isWindows() && !Platform.isSolaris()) { |
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// Larger than 4gb heap should result in zero based with shift 3 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx5g") |
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.shouldContain("Zero based") |
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.shouldContain("Oop shift amount: 3") |
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.shouldHaveExitValue(0); |
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// Larger than 3gb heap and HeapBaseMinAddress=1g should result in zero based with shift 3 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx3200m", "-XX:HeapBaseMinAddress=1g") |
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.shouldContain("Zero based") |
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.shouldContain("Oop shift amount: 3") |
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.shouldHaveExitValue(0); |
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// Small heap above 4gb should result in zero based with shift 3 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32m", "-XX:HeapBaseMinAddress=4g") |
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.shouldContain("Zero based") |
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.shouldContain("Oop shift amount: 3") |
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.shouldHaveExitValue(0); |
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|
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// Small heap above 32gb should result in non-zero based with shift 3 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32m", "-XX:HeapBaseMinAddress=32g") |
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.shouldContain("Non-zero disjoint base") |
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.shouldContain("Oop shift amount: 3") |
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.shouldHaveExitValue(0); |
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|
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// Small heap above 32gb should result in non-zero based with shift 3 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32m", "-XX:HeapBaseMinAddress=72704m") |
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.shouldContain("Non-zero based") |
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.shouldContain("Oop shift amount: 3") |
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.shouldHaveExitValue(0); |
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126 |
|
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// 32gb heap with heap base above 64gb and object alignment set to 16 bytes should result |
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// in non-zero based with shift 4 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32g", "-XX:ObjectAlignmentInBytes=16", |
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"-XX:HeapBaseMinAddress=64g") |
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.shouldContain("Non-zero disjoint base") |
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.shouldContain("Oop shift amount: 4") |
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.shouldHaveExitValue(0); |
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|
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// 32gb heap with object alignment set to 16 bytes should result in zero based with shift 4 |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32g", "-XX:ObjectAlignmentInBytes=16") |
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.shouldContain("Zero based") |
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.shouldContain("Oop shift amount: 4") |
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.shouldHaveExitValue(0); |
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} |
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|
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// This is a pathologic case for the heap allocation algorithm. Regression test. |
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// HeapBaseMinAddress must be 2g and should not be set on the command line. |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx2g") |
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.shouldNotContain("Max heap size too large for Compressed Oops") |
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.shouldHaveExitValue(0); |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx29g", "-XX:CompressedClassSpaceSize=1g") |
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.shouldNotContain("Max heap size too large for Compressed Oops") |
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.shouldHaveExitValue(0); |
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150 |
|
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// Explicitly enabling compressed oops with 32gb heap should result a warning |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32g") |
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.shouldContain("Max heap size too large for Compressed Oops") |
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.shouldHaveExitValue(0); |
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155 |
|
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// 32gb heap should not result a warning |
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testCompressedOops(args, "-Xmx32g") |
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.shouldNotContain("Max heap size too large for Compressed Oops") |
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.shouldHaveExitValue(0); |
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160 |
|
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// Explicitly enabling compressed oops with 32gb heap and object |
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162 |
// alignment set to 8 byte should result a warning |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32g", "-XX:ObjectAlignmentInBytes=8") |
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.shouldContain("Max heap size too large for Compressed Oops") |
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165 |
.shouldHaveExitValue(0); |
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166 |
|
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167 |
// 64gb heap and object alignment set to 16 bytes should result in a warning |
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testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx64g", "-XX:ObjectAlignmentInBytes=16") |
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169 |
.shouldContain("Max heap size too large for Compressed Oops") |
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170 |
.shouldHaveExitValue(0); |
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171 |
|
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172 |
} else { |
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173 |
// Compressed oops should only apply to 64bit platforms |
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174 |
testCompressedOops(args, "-XX:+UseCompressedOops", "-Xmx32m") |
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175 |
.shouldContain("Unrecognized VM option 'UseCompressedOops'") |
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176 |
.shouldHaveExitValue(1); |
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177 |
} |
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178 |
} |
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179 |
|
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180 |
private static OutputAnalyzer testCompressedOops(ArrayList<String> flags1, String... flags2) throws Exception { |
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ArrayList<String> args = new ArrayList<>(); |
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182 |
|
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183 |
// Always run with these two: |
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184 |
args.add("-Xlog:gc+heap+coops=trace"); |
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185 |
args.add("-Xms32m"); |
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186 |
|
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187 |
// Add the extra flags |
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188 |
args.addAll(flags1); |
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189 |
Collections.addAll(args, flags2); |
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190 |
|
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|
191 |
args.add("-version"); |
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|
192 |
|
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193 |
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0])); |
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194 |
return new OutputAnalyzer(pb.start()); |
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195 |
} |
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196 |
} |