diff --git a/resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/IsSynchronizedVisitor.java b/resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/IsSynchronizedVisitor.java
index 35937f991b9..34808f65c8d 100644
--- a/resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/IsSynchronizedVisitor.java
+++ b/resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/IsSynchronizedVisitor.java
@@ -33,6 +33,12 @@ static class ResourceChangedException extends RuntimeException {
 		public ResourceChangedException(IResource target) {
 			this.target = target;
 		}
+
+		@Override
+		public synchronized Throwable fillInStackTrace() {
+			// the stack trace is never used, see the class comment
+			return this;
+		}
 	}
 
 	/**