Log meaningful error message in WTPResourcesContentProvider, for AERI

Change-Id: I1d67c7676ede8a78c796724aa31e937f75f6eeed
Signed-off-by: Fred Bricon <fbricon@gmail.com>
diff --git a/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/WTPResourcesContentProvider.java b/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/WTPResourcesContentProvider.java
index c79de12..e7451e8 100644
--- a/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/WTPResourcesContentProvider.java
+++ b/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/WTPResourcesContentProvider.java
@@ -16,6 +16,7 @@
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.m2e.core.internal.IMavenConstants;
 import org.eclipse.m2e.wtp.WTPProjectsUtil;
+import org.eclipse.osgi.util.NLS;
 import org.eclipse.ui.IMemento;
 import org.eclipse.ui.model.BaseWorkbenchContentProvider;
 import org.eclipse.ui.navigator.ICommonContentExtensionSite;
@@ -85,7 +86,7 @@
             currentChildren.addAll(newChildren);
           }
         } catch(CoreException ex) {
-          LOG.error(Messages.WTPResourcesContentProvider_Error_Getting_Pipelined_Children, ex);
+          LOG.error(NLS.bind(Messages.WTPResourcesContentProvider_Error_Getting_Pipelined_Children, ex.getMessage()), ex);
         }
       }
     }
diff --git a/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/messages.properties b/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/messages.properties
index 12d4074..edba8bf 100644
--- a/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/messages.properties
+++ b/org.eclipse.m2e.wtp/src/org/eclipse/m2e/wtp/internal/messages.properties
@@ -31,7 +31,7 @@
 WarClassesClassifierClasspathProvider_WAR_Classes_Classifier_Classpath_Provider=War classes Classifier Classpath Provider
 WarProjectBuildParticipant_Error_FailOnMissingWebXml=web.xml is missing and <failOnMissingWebXml> is set to true
 WarVersionChangeListener_Error_Notifying_WebApp_Version_Change=Unable to notify Dynamic Web version change
-WTPResourcesContentProvider_Error_Getting_Pipelined_Children=Error getting pipelined children
+WTPResourcesContentProvider_Error_Getting_Pipelined_Children=Error getting pipelined children : {0}
 WTPResourcesImages_Error_Creating_ImageDescriptor=Error creating ImageDescriptor {0}
 WTPResourcesNode_Cant_Retrieve_Project_Facet=Cannot retrieve the project facet
 WTPResourcesNode_Deployed_Resources_Label=Deployed Resources