1 /*
   2  * Copyright (c) 2014, 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 8034775
  27  * @summary Ensures correct minimal number of compiler threads (provided by -XX:CICompilerCount=)
  28  * @library /testlibrary
  29  */
  30 import com.oracle.java.testlibrary.*;
  31 
  32 public class NumCompilerThreadsCheck {
  33 
  34   public static void main(String[] args) throws Exception {
  35     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:CICompilerCount=-1");
  36     OutputAnalyzer out = new OutputAnalyzer(pb.start());
  37 
  38     String expectedOutput = "CICompilerCount of -1 is invalid";
  39     out.shouldContain(expectedOutput);
  40 
  41     if (isZeroVm()) {
  42       String expectedLowWaterMarkText = "must be at least 0";
  43       out.shouldContain(expectedLowWaterMarkText);
  44     } 
  45   }
  46 
  47   private static boolean isZeroVm() {
  48     String vmName = System.getProperty("java.vm.name");
  49     if (vmName == null) {
  50       throw new RuntimeException("No VM name");
  51     }
  52     if (vmName.toLowerCase().contains("zero")) {
  53       return true;
  54     }
  55     return false;
  56   }
  57 }