--- /dev/null 2018-11-30 10:10:44.238550338 +0100 +++ new/test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierDisable.java 2018-11-30 21:07:23.057794344 +0100 @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2018, Red Hat, Inc. All rights reserved. + * + * 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 TestWrongBarrierDisable + * @summary Test that disabling wrong barriers fails early + * @key gc + * @requires vm.gc.Shenandoah + * @library /test/lib + * @run main/othervm TestWrongBarrierDisable + */ + +import java.util.*; + +import jdk.test.lib.process.ProcessTools; +import jdk.test.lib.process.OutputAnalyzer; + +public class TestWrongBarrierDisable { + + public static void main(String[] args) throws Exception { + String[] concurrent = { + "ShenandoahReadBarrier", + "ShenandoahWriteBarrier", + "ShenandoahCASBarrier", + "ShenandoahAcmpBarrier", + "ShenandoahCloneBarrier", + "ShenandoahSATBBarrier", + "ShenandoahKeepAliveBarrier", + "ShenandoahStoreValReadBarrier", + }; + + String[] traversal = { + "ShenandoahReadBarrier", + "ShenandoahWriteBarrier", + "ShenandoahCASBarrier", + "ShenandoahAcmpBarrier", + "ShenandoahCloneBarrier", + }; + + shouldFailAll("adaptive", concurrent); + shouldFailAll("static", concurrent); + shouldFailAll("compact", concurrent); + shouldFailAll("aggressive", concurrent); + shouldFailAll("traversal", traversal); + shouldPassAll("passive", concurrent); + shouldPassAll("passive", traversal); + } + + private static void shouldFailAll(String h, String[] barriers) throws Exception { + for (String b : barriers) { + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( + "-XX:+UnlockDiagnosticVMOptions", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseShenandoahGC", + "-XX:ShenandoahGCHeuristics=" + h, + "-XX:-" + b, + "-version" + ); + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + output.shouldNotHaveExitValue(0); + output.shouldContain("Heuristics needs "); + output.shouldContain("to work correctly"); + } + } + + private static void shouldPassAll(String h, String[] barriers) throws Exception { + for (String b : barriers) { + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( + "-XX:+UnlockDiagnosticVMOptions", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseShenandoahGC", + "-XX:ShenandoahGCHeuristics=" + h, + "-XX:-" + b, + "-version" + ); + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + output.shouldHaveExitValue(0); + } + } + +}