Fix ordering for duplicated values

Author: SougandhS

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

@@ -153,6 +153,7 @@ public class ToggleBreakpointAdapter implements IToggleBreakpointsTargetExtensio
 	private static final String LAMBDA_SEPARATOR = " "; //$NON-NLS-1$
 	private static final int MAX_LAMBDA_LINE_LENGTH = 25;
 	private static final int MAX_TOTAL_LAMBDA_LINE_LENGTH = MAX_LAMBDA_LINE_LENGTH * 2;
+	private static final String ZERO_WIDTH_SPACE = "\u200B"; //$NON-NLS-1$
 
 	/**
 	 * Constructor
@@ -1968,7 +1969,12 @@ private static ICompilationUnit getCompilationUnit(ITextEditor editor) {
 	}
 
 	public int selectLambda(List<LambdaExpression> lambdaExps) {
-		List<String> lambdaNames = lambdaExps.stream().map(expr -> shortenLambdaExpression(expr.toString())).toList();
+		Map<String, Integer> seen = new HashMap<>();
+		List<String> lambdaNames = lambdaExps.stream().map(expr -> shortenLambdaExpression(expr.toString())).map(name -> {
+			int count = seen.getOrDefault(name, 0);
+			seen.put(name, count + 1);
+			return count == 0 ? name : name + ZERO_WIDTH_SPACE.repeat(count);
+		}).toList();
 		LambdaLabelProvider lambdaLabelProvider = new LambdaLabelProvider(lambdaExps, lambdaNames);
 		ElementListSelectionDialog dialog = new ElementListSelectionDialog(DebugUIPlugin.getShellForModalDialog(), lambdaLabelProvider) {
 			@Override