--- /dev/null 2013-11-14 16:41:17.000000000 -0800 +++ new/test/gc/arguments/TestObjectTenuringFlags.java 2013-11-14 16:41:17.000000000 -0800 @@ -0,0 +1,216 @@ +/* +* 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 TestObjectTenuringFlags + * @key gc + * @bug 6521376 + * @summary Tests argument processing for NeverTenure, AlwaysTenure, + * and MaxTenuringThreshold + * @library /testlibrary + * @build TestObjectTenuringFlags FlagsValue + * @run main/othervm TestObjectTenuringFlags + * @author tao.mao@oracle.com + */ + +import com.oracle.java.testlibrary.*; + +import java.util.*; + +public class TestObjectTenuringFlags { + public static void main(String args[]) throws Exception { + // default case + runTenuringFlagsConsistencyTest( + new String[]{}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 15)); + + // valid cases + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+NeverTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+AlwaysTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=0"}, + false /* shouldFail */, + new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=5"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 5, 5)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=10"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 10)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=15"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 15)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=16"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 16)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=0"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 0, 15)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=5"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 5, 15)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=10"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 10, 15)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=15"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 15, 15)); + + // "Last option wins" cases + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+AlwaysTenure", "-XX:+NeverTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+NeverTenure", "-XX:+AlwaysTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=16", "-XX:+AlwaysTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+AlwaysTenure", "-XX:MaxTenuringThreshold=16"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 16)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=0", "-XX:+NeverTenure"}, + false /* shouldFail */, + new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:+NeverTenure", "-XX:MaxTenuringThreshold=0"}, + false /* shouldFail */, + new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); + + // Illegal cases + runTenuringFlagsConsistencyTest( + new String[]{"-XX:MaxTenuringThreshold=17"}, + true /* shouldFail */, + new ExpectedTenuringFlags()); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=16"}, + true /* shouldFail */, + new ExpectedTenuringFlags()); + + runTenuringFlagsConsistencyTest( + new String[]{"-XX:InitialTenuringThreshold=17"}, + true /* shouldFail */, + new ExpectedTenuringFlags()); + } + + private static void runTenuringFlagsConsistencyTest(String[] tenuringFlags, + boolean shouldFail, + ExpectedTenuringFlags expectedFlags) throws Exception { + List vmOpts = new ArrayList<>(); + if (tenuringFlags.length > 0) { + Collections.addAll(vmOpts, tenuringFlags); + } + Collections.addAll(vmOpts, "-XX:+PrintFlagsFinal", "-version"); + + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()])); + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + + if (shouldFail) { + output.shouldHaveExitValue(1); + } else { + output.shouldHaveExitValue(0); + String stdout = output.getStdout(); + checkTenuringFlagsConsistency(stdout, expectedFlags); + } + } + + private static void checkTenuringFlagsConsistency(String output, ExpectedTenuringFlags expectedFlags) { + if (expectedFlags.alwaysTenure != FlagsValue.getFlagBoolValue("AlwaysTenure", output)) { + throw new RuntimeException( + "Actual flag AlwaysTenure " + FlagsValue.getFlagBoolValue("AlwaysTenure", output) + + " is not equal to expected flag AlwaysTenure " + expectedFlags.alwaysTenure); + } + + if (expectedFlags.neverTenure != FlagsValue.getFlagBoolValue("NeverTenure", output)) { + throw new RuntimeException( + "Actual flag NeverTenure " + FlagsValue.getFlagBoolValue("NeverTenure", output) + + " is not equal to expected flag NeverTenure " + expectedFlags.neverTenure); + } + + if (expectedFlags.initialTenuringThreshold != FlagsValue.getFlagLongValue("InitialTenuringThreshold", output)) { + throw new RuntimeException( + "Actual flag InitialTenuringThreshold " + FlagsValue.getFlagLongValue("InitialTenuringThreshold", output) + + " is not equal to expected flag InitialTenuringThreshold " + expectedFlags.initialTenuringThreshold); + } + + if (expectedFlags.maxTenuringThreshold != FlagsValue.getFlagLongValue("MaxTenuringThreshold", output)) { + throw new RuntimeException( + "Actual flag MaxTenuringThreshold " + FlagsValue.getFlagLongValue("MaxTenuringThreshold", output) + + " is not equal to expected flag MaxTenuringThreshold " + expectedFlags.maxTenuringThreshold); + } + } +} + +class ExpectedTenuringFlags { + public boolean alwaysTenure; + public boolean neverTenure; + public long initialTenuringThreshold; + public long maxTenuringThreshold; + + public ExpectedTenuringFlags(boolean alwaysTenure, + boolean neverTenure, + long initialTenuringThreshold, + long maxTenuringThreshold) { + this.alwaysTenure = alwaysTenure; + this.neverTenure = neverTenure; + this.initialTenuringThreshold = initialTenuringThreshold; + this.maxTenuringThreshold = maxTenuringThreshold; + } + public ExpectedTenuringFlags() {} +} \ No newline at end of file