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langtools/test/tools/sjavac/Wrapper.java

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   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 import java.io.File;
  25 import java.lang.reflect.Method;




  26 import java.util.Arrays;
  27 

  28 
  29 public class Wrapper {
  30     public static void main(String... args) throws Exception {
  31         if (!isSJavacOnClassPath()) {
  32             System.out.println("sjavac not available: pass by default");
  33             return;
  34         }
  35 
  36         String testClassName = args[0];
  37         String[] testArgs = Arrays.copyOfRange(args, 1, args.length);
  38 
  39         File srcDir = new File(System.getProperty("test.src"));
  40         File clsDir = new File(System.getProperty("test.classes"));


  41 
  42         File src = new File(srcDir, testClassName + ".java");
  43         File cls = new File(clsDir, testClassName + ".class");
  44 
  45         if (cls.lastModified() < src.lastModified()) {
  46             System.err.println("Recompiling test class...");
  47             String[] javacArgs = { "-d", clsDir.getPath(), src.getPath() };
  48             int rc = com.sun.tools.javac.Main.compile(javacArgs);










  49             if (rc != 0)
  50                 throw new Exception("compilation failed");
  51         }
  52 
  53         Class<?> sjavac = Class.forName(testClassName);
  54         Method main = sjavac.getMethod("main", String[].class);
  55         main.invoke(null, new Object[] { testArgs });
  56     }
  57 






  58     private static boolean isSJavacOnClassPath() {
  59         String cls = "com/sun/tools/sjavac/Main.class";
  60         return Wrapper.class.getClassLoader().getResource(cls) != null;
  61     }
  62 }
   1 /*
   2  * Copyright (c) 2014, 2016, 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.io.IOException;
  25 import java.lang.reflect.Method;
  26 import java.nio.file.Files;
  27 import java.nio.file.Path;
  28 import java.nio.file.Paths;
  29 import java.util.ArrayList;
  30 import java.util.Arrays;
  31 import java.util.List;
  32 import java.util.stream.Collectors;
  33 
  34 public class Wrapper {
  35     public static void main(String... args) throws Exception {
  36         if (!isSJavacOnClassPath()) {
  37             System.out.println("sjavac not available: pass by default");
  38             return;
  39         }
  40 
  41         String testClassName = args[0];
  42         String[] testArgs = Arrays.copyOfRange(args, 1, args.length);
  43 
  44         Path srcDir = Paths.get(System.getProperty("test.src"));
  45         Path clsDir = Paths.get(System.getProperty("test.classes"));
  46         String clsPath = System.getProperty("test.class.path");
  47         String tstMdls = System.getProperty("test.modules");
  48 
  49         Path src = srcDir.resolve(testClassName + ".java");
  50         Path cls = clsDir.resolve(testClassName + ".class");
  51 
  52         if (isNewer(src, cls)) {
  53             System.err.println("Recompiling test class...");
  54             List<String> javacArgs = new ArrayList<>();
  55             javacArgs.addAll(Arrays.asList("-d", clsDir.toString()));
  56             javacArgs.addAll(Arrays.asList("-sourcepath", srcDir.toString()));
  57             javacArgs.addAll(Arrays.asList("-classpath", clsPath));
  58             Arrays.stream(tstMdls.split("\\s+"))
  59                 .filter(s -> s.contains("/"))
  60                 .map(s -> "--add-exports=" + s + "=ALL-UNNAMED")
  61                 .collect(Collectors.toCollection(() -> javacArgs));
  62             javacArgs.add(src.toString());
  63             System.out.println("javac: " + javacArgs);
  64             int rc = com.sun.tools.javac.Main.compile(
  65                 javacArgs.toArray(new String[javacArgs.size()]));
  66             if (rc != 0)
  67                 throw new Exception("compilation failed");
  68         }
  69 
  70         Class<?> sjavac = Class.forName(testClassName);
  71         Method main = sjavac.getMethod("main", String[].class);
  72         main.invoke(null, new Object[] { testArgs });
  73     }
  74 
  75     private static boolean isNewer(Path a, Path b) throws IOException {
  76         if (Files.notExists(b))
  77             return true;
  78         return Files.getLastModifiedTime(a).compareTo(Files.getLastModifiedTime(b)) > 0;
  79     }
  80 
  81     private static boolean isSJavacOnClassPath() {
  82         String cls = "com/sun/tools/sjavac/Main.class";
  83         return Wrapper.class.getClassLoader().getResource(cls) != null;
  84     }
  85 }
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