1 /*
   2  * Copyright (c) 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 import java.util.ArrayList;
  25 import java.util.List;
  26 import java.util.Map;
  27 
  28 import jdk.test.lib.process.OutputAnalyzer;
  29 import jdk.test.lib.process.ProcessTools;
  30 
  31 /*
  32  * Utilities for executing java process.
  33  */
  34 public class ProcessUtils {
  35 
  36     private static final String TEST_CLASSES = System.getProperty("test.classes");
  37 
  38     public static OutputAnalyzer java(String jdkPath, Map<String, String> props,
  39             Class<?> clazz) {
  40         List<String> cmds = new ArrayList<>();
  41         cmds.add(jdkPath + "/bin/java");
  42 
  43         if (props != null) {
  44             for (Map.Entry<String, String> prop : props.entrySet()) {
  45                 cmds.add("-D" + prop.getKey() + "=" + prop.getValue());
  46             }
  47         }
  48 
  49         cmds.add("-cp");
  50         cmds.add(TEST_CLASSES);
  51         cmds.add(clazz.getName());
  52         try {
  53             return ProcessTools.executeCommand(
  54                     cmds.toArray(new String[cmds.size()]));
  55         } catch (Throwable e) {
  56             throw new RuntimeException("Execute command failed: " + cmds, e);
  57         }
  58     }
  59 }