diff --git a/test/langtools/tools/javac/patterns/Exhaustiveness.java b/test/langtools/tools/javac/patterns/Exhaustiveness.java
index 61a7c445d9b..da2ec6aa9e8 100644
--- a/test/langtools/tools/javac/patterns/Exhaustiveness.java
+++ b/test/langtools/tools/javac/patterns/Exhaustiveness.java
@@ -1636,10 +1636,11 @@ public class Exhaustiveness extends TestRunner {
 //    @Test
     public void testDeeplyNestedNotExhaustive(Path base) throws Exception {
         List<String> variants = createDeeplyNestedVariants().stream().collect(Collectors.toCollection(ArrayList::new));
-        variants.remove((int) (Math.random() * variants.size()));
+        int removed = (int) (Math.random() * variants.size());
+        variants.remove(removed);
         String code = testCodeForVariants(variants);
 
-        System.err.println("analyzing:");
+        System.err.println("analyzing (removed: " + removed + "):");
         System.err.println(code);
         doTest(base,
                new String[0],