this class looks wierd nowadays
@@ -306,6 +306,9 @@ private static void fillField(final ZipExtraField ze, final boolean local, final
* "enum" for the possible actions to take if the extra field
* cannot be parsed.
*
+ * <p>This class has been created long before Java 5 and would
+ * have been a real enum ever since.</p>
+ *
* @since 1.1
*/
public static final class UnparseableExtraField implements UnparseableExtraFieldBehavior {
