1 /*
   2  * Copyright (c) 2020, Red Hat, Inc. 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 /*
  26  * @test TestSoftMaxHeapSize
  27  * @summary Test that Shenandoah checks SoftMaxHeapSize
  28  * @library /testlibrary
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @run driver TestSoftMaxHeapSize
  32  */
  33 
  34 import com.oracle.java.testlibrary.*;
  35 
  36 public class TestSoftMaxHeapSize {
  37     public static void main(String[] args) throws Exception {
  38         {
  39             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  40                     "-XX:+UseShenandoahGC",
  41                     "-Xms4m",
  42                     "-Xmx128m",
  43                     "-XX:ShenandoahSoftMaxHeapSize=4m",
  44                     "-version");
  45             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  46             output.shouldHaveExitValue(0);
  47         }
  48 
  49         {
  50             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  51                     "-XX:+UseShenandoahGC",
  52                     "-Xms4m",
  53                     "-Xmx128m",
  54                     "-XX:ShenandoahSoftMaxHeapSize=128m",
  55                     "-version");
  56             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  57             output.shouldHaveExitValue(0);
  58         }
  59 
  60         {
  61             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  62                     "-XX:+UseShenandoahGC",
  63                     "-Xms4m",
  64                     "-Xmx128m",
  65                     "-XX:ShenandoahSoftMaxHeapSize=129m",
  66                     "-version");
  67             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  68             output.shouldHaveExitValue(1);
  69             output.shouldContain("SoftMaxHeapSize must be less than or equal to the maximum heap size");
  70         }
  71     }
  72 }