--- /dev/null 2016-03-14 09:47:41.633860807 +0100 +++ new/test/gc/arguments/TestDisableDefaultGC.java 2016-03-21 13:54:05.589511102 +0100 @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2016, 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 TestDisableDefaultGC + * @summary Test that the VM complains when the default GC is disabled and no other GC is specified + * @bug 8068579 + * @key gc + * @library /testlibrary + * @requires vm.gc=="null" + * @modules java.base/sun.misc + * java.management + * @run driver TestDisableDefaultGC + */ + +import jdk.test.lib.*; + +public class TestDisableDefaultGC { + public static void main(String[] args) throws Exception { + // Start VM, disabling all possible default GCs + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:-UseSerialGC", + "-XX:-UseParallelGC", + "-XX:-UseG1GC", + "-XX:-UseConcMarkSweepGC", + "-version"); + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + output.shouldMatch("Garbage collector not selected"); + output.shouldHaveExitValue(1); + } +}