Reapplied previous JavaDoc patch.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271718 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Jar.java

@@ -284,8 +284,10 @@ public class Jar extends Zip {
 
     /**
      * Create the index list to speed up classloading.
-     * This is a JDK 1.3+ specific feature and is disabled by default.
-     * {@link http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html#JAR%20Index}
+     * This is a JDK 1.3+ specific feature and is enabled by default. See
+     * <a href="http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html#JAR+Index">the
+     * JAR index specification</a> for more details.
+     * 
      * @param zOut the zip stream representing the jar being built.
      * @throws IOException thrown if there is an error while creating the
      * index and adding it to the zip stream.