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diff --git a/src/org/jivesoftware/smack/util/collections/AbstractKeyValue.java b/src/org/jivesoftware/smack/util/collections/AbstractKeyValue.java
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+++ b/src/org/jivesoftware/smack/util/collections/AbstractKeyValue.java
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+// GenericsNote: Converted.
+/*
+ *  Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  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.jivesoftware.smack.util.collections;
+
+
+/**
+ * Abstract pair class to assist with creating KeyValue and MapEntry implementations.
+ *
+ * @author James Strachan
+ * @author Michael A. Smith
+ * @author Neil O'Toole
+ * @author Matt Hall, John Watkinson, Stephen Colebourne
+ * @version $Revision: 1.1 $ $Date: 2005/10/11 17:05:32 $
+ * @since Commons Collections 3.0
+ */
+public abstract class AbstractKeyValue <K,V> implements KeyValue<K, V> {
+
+    /**
+     * The key
+     */
+    protected K key;
+    /**
+     * The value
+     */
+    protected V value;
+
+    /**
+     * Constructs a new pair with the specified key and given value.
+     *
+     * @param key   the key for the entry, may be null
+     * @param value the value for the entry, may be null
+     */
+    protected AbstractKeyValue(K key, V value) {
+        super();
+        this.key = key;
+        this.value = value;
+    }
+
+    /**
+     * Gets the key from the pair.
+     *
+     * @return the key
+     */
+    public K getKey() {
+        return key;
+    }
+
+    /**
+     * Gets the value from the pair.
+     *
+     * @return the value
+     */
+    public V getValue() {
+        return value;
+    }
+
+    /**
+     * Gets a debugging String view of the pair.
+     *
+     * @return a String view of the entry
+     */
+    public String toString() {
+        return new StringBuilder().append(getKey()).append('=').append(getValue()).toString();
+    }
+
+}