X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=third-party%2Ftriemap%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fyangtools%2Ftriemap%2FNone.java;h=cef3a0cdff12e6697c65dd2c66ce5b772fc79a3a;hb=5d673fd89ed04fb3a9cdb1539758c499312917f2;hp=6c1190c5b37d7f0112e17d707bfa7934c8df9fd8;hpb=ddb098da2d1f8607e1cf073c05e0d8e187eb1ab4;p=yangtools.git

diff --git a/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/None.java b/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/None.java
index 6c1190c5b3..cef3a0cdff 100644
--- a/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/None.java
+++ b/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/None.java
@@ -1,12 +1,30 @@
+/*
+ * (C) Copyright 2016 Pantheon Technologies, s.r.o. and others.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.opendaylight.yangtools.triemap;
 
 /**
  * Mimic None in Scala
- *  
+ *
  * @author Roman Levenstein <romixlev@gmail.com>
  *
  * @param <V>
  */
-class None<V> extends Option<V>{
-
+final class None<V> extends Option<V> {
+    @Override
+    boolean nonEmpty() {
+        return false;
+    }
 }