6881337: ZipEntry.setComment() was accidentally changed back to old spec/impl in jdk7-b64

Summary: restored the correct spec and implementation of setComment
Reviewed-by: martin

src/share/classes/java/util/zip/ZipEntry.java

@@ -253,14 +253,10 @@ class ZipEntry implements ZipConstants, Cloneable {
      * the first 0xFFFF bytes are output to the ZIP file entry.
      *
      * @param comment the comment string
-     * @exception IllegalArgumentException if the length of the specified
-     *            comment string is greater than 0xFFFF bytes
+     *
      * @see #getComment()
      */
     public void setComment(String comment) {
-        if (comment != null && comment.length() > 0xffff) {
-            throw new IllegalArgumentException("invalid entry comment length");
-        }
         this.comment = comment;
     }