HADOOP-6215. fix GenericOptionParser to deal with -D with '=' in the value. Contributed by Amar Kamat.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@808415 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -944,6 +944,9 @@ Trunk (unreleased changes)
     HADOOP-6152. Fix classpath variables in bin/hadoop-config.sh and some
     other scripts.  (Aaron Kimball via szetszwo)
 
+    HADOOP-6215. fix GenericOptionParser to deal with -D with '=' in the 
+    value. (Amar Kamat via sharad)
+
 Release 0.20.1 - Unreleased
 
   INCOMPATIBLE CHANGES

src/java/org/apache/hadoop/util/GenericOptionsParser.java

@@ -281,7 +281,7 @@ public class GenericOptionsParser {
     if (line.hasOption('D')) {
       String[] property = line.getOptionValues('D');
       for(String prop : property) {
-        String[] keyval = prop.split("=");
+        String[] keyval = prop.split("=", 2);
         if (keyval.length == 2) {
           conf.set(keyval[0], keyval[1]);
         }

src/test/core/org/apache/hadoop/util/TestGenericsUtil.java

@@ -103,6 +103,12 @@ public class TestGenericsUtil extends TestCase {
      GenericOptionsParser parser = new GenericOptionsParser(
         new Configuration(), new String[] {"-jt"});
     assertEquals(parser.getRemainingArgs().length, 0);
+    
+    //  test if -D accepts -Dx=y=z
+    parser = 
+      new GenericOptionsParser(new Configuration(), 
+                               new String[] {"-Dx=y=z"});
+    assertEquals(parser.getConfiguration().get("x"), "y=z");
   }
   
   public void testGetClass() {