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  */
  32 
  33 import jdk.test.lib.process.ProcessTools;
  34 import jdk.test.lib.process.OutputAnalyzer;
  35 import jdk.test.lib.Platform;
  36 
  37 public class VMOptionWarning {
  38     public static void main(String[] args) throws Exception {
  39         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+AlwaysSafeConstructors", "-version");
  40         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  41         output.shouldContain("Error: VM option 'AlwaysSafeConstructors' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.");
  42 
  43         if (Platform.isDebugBuild()) {
  44             System.out.println("Skip the rest of the tests on debug builds since diagnostic, develop, and notproduct options are available on debug builds.");
  45             return;
  46         }
  47 
  48         pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintInlining", "-version");
  49         output = new OutputAnalyzer(pb.start());
  50         output.shouldContain("Error: VM option 'PrintInlining' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.");
  51 
  52         pb = ProcessTools.createJavaProcessBuilder("-XX:+VerifyStack", "-version");
  53         output = new OutputAnalyzer(pb.start());
  54         output.shouldContain("Error: VM option 'VerifyStack' is develop and is available only in debug version of VM.");
  55 
  56         pb = ProcessTools.createJavaProcessBuilder("-XX:+ExecuteInternalVMTests", "-version");
  57         output = new OutputAnalyzer(pb.start());
  58         output.shouldContain("Error: VM option 'ExecuteInternalVMTests' is notproduct and is available only in debug version of VM.");
  59     }
  60 }