test/jdk/java/util/Collections/CheckedQueue.java

*** 1,7 ***
  /*
!  * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ---
  /*
!  * Copyright (c) 2011, 2026, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 23,13 ***
--- 23,16 ---
  
  /*
   * @test
   * @bug 5020931 8048207
   * @summary Unit test for Collections.checkedQueue
+  * @library /test/lib
   * @run testng CheckedQueue
   */
  
+ import jdk.test.lib.valueclass.VClass;
+ import java.util.ArrayDeque;
  import java.util.Collections;
  import java.util.Queue;
  import java.util.concurrent.ArrayBlockingQueue;
  
  import org.testng.annotations.Test;

*** 147,6 ***
--- 150,18 ---
          assertTrue(q.offer("0"), "queue should have room");
  
          // no room at the inn!
          assertFalse(q.offer("1"), "queue should be full");
      }
+ 
+     @Test
+     public void testValueCheckedQueue() {
+         Queue<VClass> q = Collections.checkedQueue(new ArrayDeque<>(), VClass.class);
+         q.add(new VClass(1, new int[] { 1 }));
+         if (!q.peek().equals(new VClass(1, new int[] { 1 })))
+             fail("value checkedQueue peek failed");
+         try {
+             ((Queue) q).add("not a Tuple");
+             fail("value checkedQueue accepted wrong type");
+         } catch (ClassCastException expected) { }
+     }
  }