src/java.prefs/share/classes/java/util/prefs/Preferences.java

rev 11676 : 8075156: (prefs) remove() should disallow the use of the null control character '\u0000' as key
Summary: Extend disallowing null control character key to remove()
Reviewed-by: XXX

*** 528,537 ****
--- 528,539 ----
       *
       * @param key key whose mapping is to be removed from the preference node.
       * @throws NullPointerException if <tt>key</tt> is <tt>null</tt>.
       * @throws IllegalStateException if this node (or an ancestor) has been
       *         removed with the {@link #removeNode()} method.
+      * @throws IllegalArgumentException if the key contains the null control
+      *         character, code point U+0000.
       */
      public abstract void remove(String key);
  
      /**
       * Removes all of the preferences (key-value associations) in this