diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverChangeEvent.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverChangeEvent.java
index 39829faf4d6..24b27027f60 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverChangeEvent.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverChangeEvent.java
@@ -83,13 +83,13 @@ public class ResolverChangeEvent extends EventObject {
 	public String toString() {
 		StringBuffer buf = new StringBuffer();
 		
-		buf.append("ResolverChangeEvent [");
+		buf.append("ResolverChangeEvent ["); //$NON-NLS-1$
 		buf.append(fDeltas.size());
-		buf.append(" delta(s)]");
+		buf.append(" delta(s)]"); //$NON-NLS-1$
 		
 		for (Iterator iter = fDeltas.iterator(); iter.hasNext();) {
 			ResolverDelta element = (ResolverDelta) iter.next();
-			buf.append("\n  ");
+			buf.append("\n  "); //$NON-NLS-1$
 			buf.append(element.toString());
 		}
 		
diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverDelta.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverDelta.java
index 9dacca95ceb..cc8e62bf1cd 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverDelta.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/filetype/ResolverDelta.java
@@ -74,34 +74,34 @@ public class ResolverDelta {
 		StringBuffer buf = new StringBuffer();
 		switch (getEventType()) {
 			case EVENT_ADD:
-				buf.append("add");
+				buf.append("add"); //$NON-NLS-1$
 				break;
 			case EVENT_REMOVE:
-				buf.append("remove");
+				buf.append("remove"); //$NON-NLS-1$
 				break;
 			case EVENT_SET:
-				buf.append("set");
+				buf.append("set"); //$NON-NLS-1$
 				break;
 			default:
-				buf.append("?unknown event?");
+				buf.append("?unknown event?"); //$NON-NLS-1$
 				break;
 		}
-		buf.append(" ");
+		buf.append(' ');
 		switch (getElementType()) {
 			case ELEMENT_LANGUAGE:
-				buf.append("language ");
-				buf.append(null != getLanguage() ? getLanguage().getName() : "?");
+				buf.append("language "); //$NON-NLS-1$
+				buf.append(null != getLanguage() ? getLanguage().getName() : "?"); //$NON-NLS-1$
 				break;
 			case ELEMENT_FILETYPE:
-				buf.append("filetype ");
-				buf.append(null != getFileType() ? getFileType().getName() : "?");
+				buf.append("filetype "); //$NON-NLS-1$
+				buf.append(null != getFileType() ? getFileType().getName() : "?"); //$NON-NLS-1$
 				break;
 			case ELEMENT_ASSOCIATION:
-				buf.append("assoc ");
-				buf.append(null != getAssociation() ? getAssociation().getPattern() : "?");
+				buf.append("assoc "); //$NON-NLS-1$
+				buf.append(null != getAssociation() ? getAssociation().getPattern() : "?"); //$NON-NLS-1$
 				break;
 			default:
-				buf.append("?unknown source?");
+				buf.append("?unknown source?"); //$NON-NLS-1$
 				break;
 		}