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diff --git a/extraplugins/propertylifecycle/org.eclipse.papyrus.propertylifecycle.preferences/src/org/eclipse/papyrus/propertylifecycle/preferences/Activator.java b/extraplugins/propertylifecycle/org.eclipse.papyrus.propertylifecycle.preferences/src/org/eclipse/papyrus/propertylifecycle/preferences/Activator.java
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+++ b/extraplugins/propertylifecycle/org.eclipse.papyrus.propertylifecycle.preferences/src/org/eclipse/papyrus/propertylifecycle/preferences/Activator.java
@@ -0,0 +1,120 @@
+/*****************************************************************************
+ * Copyright (c) 2016 CEA LIST and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Quentin Le Menez (CEA LIST) quentin.lemenez@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+
+package org.eclipse.papyrus.propertylifecycle.preferences;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.resource.ImageRegistry;
+import org.eclipse.papyrus.infra.core.log.LogHelper;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.ui.plugin.AbstractUIPlugin;
+import org.osgi.framework.BundleContext;
+
+/**
+ * The activator class controls the plug-in life cycle
+ * 
+ */
+public class Activator extends AbstractUIPlugin {
+
+	/** The plug-in ID */
+	public static final String PLUGIN_ID = "org.eclipse.papyrus.infra.propertylifecycle.preferences"; //$NON-NLS-1$
+
+	/** The shared instance */
+	private static Activator plugin;
+
+	/** Logging helper */
+	public static LogHelper log;
+
+	/** The tag to identify the trace when activating the messages in the .options file */
+	public static String STRATEGY_PREFERENCES_TRACE = "lifecyclepreferences";
+
+	/**
+	 * The constructor
+	 */
+	public Activator() {
+	}
+
+	/*
+	 * (non-Javadoc)
+	 *
+	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
+	 */
+	@Override
+	public void start(BundleContext context) throws Exception {
+		super.start(context);
+		plugin = this;
+		log = new LogHelper(this);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 *
+	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
+	 */
+	@Override
+	public void stop(BundleContext context) throws Exception {
+		plugin = null;
+		log = null;
+		super.stop(context);
+	}
+
+	/**
+	 * Returns the shared instance
+	 *
+	 * @return the shared instance
+	 */
+	public static Activator getDefault() {
+		return plugin;
+	}
+
+	/**
+	 * Get the image from its path in the current plugin
+	 * 
+	 * @param path
+	 * @return
+	 * 		The {@link #org.eclipse.swt.graphics.Image image}
+	 */
+	public Image getImage(String path) {
+		return getImage(PLUGIN_ID, path);
+	}
+
+	/**
+	 * Get the image from its path in the specified plugin
+	 * 
+	 * @param pluginId
+	 * @param path
+	 * @return
+	 * 		The {@link #org.eclipse.swt.graphics.Image image}
+	 */
+	public Image getImage(String pluginId, String path) {
+		final ImageRegistry registry = getImageRegistry();
+		String key = pluginId + "/" + path; //$NON-NLS-1$
+		Image image = registry.get(key);
+		if (image == null) {
+			registry.put(key, AbstractUIPlugin.imageDescriptorFromPlugin(pluginId, path));
+			image = registry.get(key);
+		}
+		return image;
+	}
+
+	/**
+	 * Returns an image descriptor for the image file at the given plug-in relative path.
+	 *
+	 * @param path
+	 * @return the image descriptor
+	 */
+	public ImageDescriptor getImageDescriptor(String path) {
+		return imageDescriptorFromPlugin(PLUGIN_ID, path);
+	}
+
+}