1 files changed, 6 insertions, 3 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/browsers/ArchiveFilter.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/browsers/ArchiveFilter.java
index 32256bde6..e851b1ee9 100644
--- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/browsers/ArchiveFilter.java
+++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/browsers/ArchiveFilter.java
@@ -63,9 +63,12 @@ public class ArchiveFilter extends ViewerFilter {
 	 * Search for all archives in the workspace.
 	 */
 	private void init() {
-		BusyIndicator.showWhile(DebugUIPlugin.getStandardDisplay(), () -> {
-			fArchives = new HashSet<IResource>();
-			traverse(ResourcesPlugin.getWorkspace().getRoot(), fArchives);
+		BusyIndicator.showWhile(DebugUIPlugin.getStandardDisplay(), new Runnable() {
+			@Override
+			public void run() {
+				fArchives = new HashSet<IResource>();
+				traverse(ResourcesPlugin.getWorkspace().getRoot(), fArchives);
+			}
 		});
 	}