Fix lambda comparator

Author: SougandhS

org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/ToggleBreakpointAdapter.java

@@ -15,7 +15,6 @@
 
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
@@ -1975,7 +1974,12 @@ public int selectLambda(List<LambdaExpression> lambdaExps) {
 			protected FilteredList createFilteredList(Composite parent) {
 				FilteredList filteredList = super.createFilteredList(parent);
 				// Disable default sorting to keep the original order
-				filteredList.setComparator(new LambdaPositionComparator(lambdaNames));
+				filteredList.setComparator((o1, o2) -> {
+					if (o1 instanceof LambdaExpression l1 && o2 instanceof LambdaExpression l2) {
+						return Integer.compare(l1.getStartPosition(), l2.getStartPosition());
+					}
+					return 0;
+				});
 				filteredList.addSelectionListener(new SelectionAdapter() {
 					@Override
 					public void widgetSelected(SelectionEvent e) {
@@ -2012,21 +2016,6 @@ protected void setShellStyle(int newShellStyle) {
 		return -1;
 	}
 
-	private static class LambdaPositionComparator implements Comparator<Object> {
-		private List<String> lambdaNames;
-
-		public LambdaPositionComparator(List<String> lambdaNames) {
-			this.lambdaNames = lambdaNames;
-		}
-
-		@Override
-		public int compare(Object o1, Object o2) {
-			int index1 = lambdaNames.indexOf(o1);
-			int index2 = lambdaNames.indexOf(o2);
-			return index1 - index2;
-		}
-	}
-
 	private static class LambdaLabelProvider extends LabelProvider {
 		private List<LambdaExpression> lambdaExps;
 		private List<String> lambdaNames;