1 files changed, 11 insertions, 8 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/Prompter.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/Prompter.java
index a08b52ab4..c2aad191b 100644
--- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/Prompter.java
+++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/Prompter.java
@@ -65,14 +65,17 @@ public class Prompter implements IStatusHandler {
 		final Object[] result = new Object[1];
 		final CoreException[] exception = new CoreException[1];
 		final Object lock = this;
-		Runnable r = () -> {
-			try {
-				result[0] = handler.handleStatus(status, source);
-			} catch (CoreException e) {
-				exception[0] = e;
-			}
-			synchronized (lock) {
-				lock.notifyAll();
+		Runnable r = new Runnable() {
+			@Override
+			public void run() {
+				try {
+					result[0] = handler.handleStatus(status, source);
+				} catch (CoreException e) {
+					exception[0] = e;
+				}
+				synchronized (lock) {
+					lock.notifyAll();
+				}
 			}
 		};
 		DebugUIPlugin.getStandardDisplay().syncExec(r);