[refactoring] Fix a warning for an unused exception

Change-Id: I231f6627c5be3b2cef63b579ad530d19aa7763a6
Signed-off-by: Stéphane Bégaudeau <stephane.begaudeau@obeo.fr>
diff --git a/plugins/org.eclipse.eef.properties.ui/plugin.properties b/plugins/org.eclipse.eef.properties.ui/plugin.properties
index 945b9d0..84c42f4 100644
--- a/plugins/org.eclipse.eef.properties.ui/plugin.properties
+++ b/plugins/org.eclipse.eef.properties.ui/plugin.properties
@@ -1,4 +1,4 @@
-# Copyright (c) 2015, 2016 Obeo.
+# Copyright (c) 2015, 2017 Obeo.
 # 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
@@ -12,5 +12,6 @@
 
 DescriptorRegistryEventListener_missingAttribute=The attribute {1} is missing from the configuration element {0}. 
 DescriptorRegistryEventListener_extensionAlreadyContributed=The extension {0} has already been contributed.
+DescriptorRegistryEventListener_cannotInstantiateExtension=The extension {0} has not been successfully instantiated.
 
 EEFTabbedPropertyRegistry_MissingSectionDescriptorId=The section descriptor does not have an identifier, it cannot be used.
\ No newline at end of file
diff --git a/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/Messages.java b/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/Messages.java
index df704e0..2cf37f8 100644
--- a/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/Messages.java
+++ b/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/Messages.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2015, 2016 Obeo.
+ * Copyright (c) 2015, 2017 Obeo.
  * 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
@@ -25,6 +25,8 @@
 
 	public static String EEFTabbedPropertyRegistry_MissingSectionDescriptorId;
 
+	public static String DescriptorRegistryEventListener_cannotInstantiateExtension;
+
 	// CHECKSTYLE:ON
 
 	/**
diff --git a/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/extension/impl/EEFDescriptorRegistryEventListener.java b/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/extension/impl/EEFDescriptorRegistryEventListener.java
index 4ceff3c..64db323 100644
--- a/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/extension/impl/EEFDescriptorRegistryEventListener.java
+++ b/plugins/org.eclipse.eef.properties.ui/src/org/eclipse/eef/properties/ui/internal/extension/impl/EEFDescriptorRegistryEventListener.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2015, 2016 Obeo.
+ * Copyright (c) 2015, 2017 Obeo.
  * 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
@@ -136,10 +136,9 @@
 				EEFTabbedPropertyViewPlugin.getPlugin().error(message);
 			}
 		} catch (CoreException e) {
-			// String message =
-			// MessageFormat.format(Messages.DescriptorRegistryEventListener_cannotInstantiateExtension,
-			// configurationElement.getAttribute(IMPL_CLASS_DESCRIPTOR_ATTR));
-			// EEFTabbedPropertyViewPlugin.getInstance().logError(message);
+			String message = MessageFormat.format(Messages.DescriptorRegistryEventListener_cannotInstantiateExtension,
+					configurationElement.getAttribute(IMPL_CLASS_DESCRIPTOR_ATTR));
+			EEFTabbedPropertyViewPlugin.getPlugin().error(message, e);
 
 			return false;
 		}