diff --git a/src/net/java/sip/communicator/service/protocol/event/GeolocationListener.java b/src/net/java/sip/communicator/service/protocol/event/GeolocationListener.java
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+++ b/src/net/java/sip/communicator/service/protocol/event/GeolocationListener.java
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+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.service.protocol.event;
+
+import java.util.*;
+
+/**
+ * The listener interface for receiving geolocation events.
+ * The class that is interested in processing a geolocation event
+ * implements this interface, and the object created with that
+ * class is registered with the geolocation operation set, using its
+ * <code>addGeolocationListener</code> method. When a geolocation event
+ * occurs, that object's <code>contactGeolocationChanged</code> method is
+ * invoked.
+ *
+ * @see GeolocationEvent
+ *
+ * @author Guillaume Schreiner
+ */
+public interface GeolocationListener
+    extends EventListener
+{
+    /**
+     * Called whenever a change occurs in the GeolocationPresence of one of the
+     * contacts that we have subscribed for.
+     *
+     * @param evt the ContactGeolocationPresenceChangeEvent describing the
+     * status change.
+     */
+    public void contactGeolocationChanged(GeolocationEvent evt);
+}