BUG-7464: remove TestHelper

[yangtools.git] / third-party / triemap / src / main / java / org / opendaylight / yangtools / triemap / None.java

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 218886e15333c5363d1e8a7e5807b1aae5f4bb44..cef3a0cdff12e6697c65dd2c66ce5b772fc79a3a 100644 (file)
--- 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
@@ -1,3 +1,18 @@
+/*
+ * (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;
 
 /**
@@ -7,6 +22,9 @@ package org.opendaylight.yangtools.triemap;
  *
  * @param <V>
  */
-class None<V> extends Option<V>{
-
+final class None<V> extends Option<V> {
+    @Override
+    boolean nonEmpty() {
+        return false;
+    }
 }