1 /*
   2  * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8027314
  27  * @summary Warn if diagnostic or experimental vm option is used and -XX:+UnlockDiagnosticVMOptions or -XX:+UnlockExperimentalVMOptions, respectively, isn't specified. Warn if develop or notproduct vm option is used with product version of VM.
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @run driver VMOptionWarning
  32  */
  33 
  34 import jdk.test.lib.process.ProcessTools;
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 import jdk.test.lib.Platform;
  37 
  38 public class VMOptionWarning {
  39     public static void main(String[] args) throws Exception {
  40         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+AlwaysSafeConstructors", "-version");
  41         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  42         output.shouldContain("Error: VM option 'AlwaysSafeConstructors' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.");
  43 
  44         if (Platform.isDebugBuild()) {
  45             System.out.println("Skip the rest of the tests on debug builds since diagnostic, develop, and notproduct options are available on debug builds.");
  46             return;
  47         }
  48 
  49         pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintInlining", "-version");
  50         output = new OutputAnalyzer(pb.start());
  51         output.shouldContain("Error: VM option 'PrintInlining' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.");
  52 
  53         pb = ProcessTools.createJavaProcessBuilder("-XX:+VerifyStack", "-version");
  54         output = new OutputAnalyzer(pb.start());
  55         output.shouldContain("Error: VM option 'VerifyStack' is develop and is available only in debug version of VM.");
  56 
  57         pb = ProcessTools.createJavaProcessBuilder("-XX:+CheckCompressedOops", "-version");
  58         output = new OutputAnalyzer(pb.start());
  59         output.shouldContain("Error: VM option 'CheckCompressedOops' is notproduct and is available only in debug version of VM.");
  60     }
  61 }