diff --git a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/ResumeAtLineAdapter.java b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/ResumeAtLineAdapter.java
index 8dc867fd748..3c608bc6227 100644
--- a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/ResumeAtLineAdapter.java
+++ b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/ResumeAtLineAdapter.java
@@ -152,11 +152,13 @@ public class ResumeAtLineAdapter implements IResumeAtLineTarget {
 				if ( document == null ) {
 					return false;
 				}
-				String fileName; // actually, absolute path, not just file name
+				String fileName = null; // actually, absolute path, not just file name
 				try {
 					fileName = getFileName( input );
 				}
 				catch( CoreException e ) {
+				}
+				if (fileName == null) {
 					return false;
 				}
 				IDebugTarget debugTarget = null;
diff --git a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/RunToLineAdapter.java b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/RunToLineAdapter.java
index c7c2d804ed2..df774f324b2 100644
--- a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/RunToLineAdapter.java
+++ b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/RunToLineAdapter.java
@@ -155,11 +155,13 @@ public class RunToLineAdapter implements IRunToLineTarget {
 				if ( document == null ) {
 					return false;
 				}
-				String fileName; // actually, absolute path, not just file name
+				String fileName = null; // actually, absolute path, not just file name
 				try {
 					fileName = getFileName( input );
 				}
 				catch( CoreException e ) {
+				}
+				if (fileName == null) {
 					return false;
 				}
 				IDebugTarget debugTarget = null;