Index: gnu/testlet/javax/swing/JComponent/getPreferredSize.java
===================================================================
RCS file: /cvs/mauve/mauve/gnu/testlet/javax/swing/JComponent/getPreferredSize.java,v
retrieving revision 1.1
diff -u -r1.1 getPreferredSize.java
--- gnu/testlet/javax/swing/JComponent/getPreferredSize.java	12 Dec 2005 13:13:20 -0000	1.1
+++ gnu/testlet/javax/swing/JComponent/getPreferredSize.java	15 Dec 2005 17:42:27 -0000
@@ -120,6 +120,7 @@
     testWithAll(harness);
 
     testSmallerThanMinSize(harness);
+    testChangeValue(harness);
   }
 
   /**
@@ -261,4 +262,21 @@
     c.setPreferredSize(new Dimension(50, 50));
     h.check(c.getPreferredSize(), new Dimension(50, 50));
   }
+
+  /**
+   * Tests if it is possible to change to actual setting or preferredSize by
+   * changing the values of the returned Dimension object.
+   *
+   * @param h the test harness
+   */
+  private void testChangeValue(TestHarness h)
+  {
+    h.checkPoint("changeValue");
+    TestComponent c = new TestComponent();
+    c.setPreferredSize(new Dimension(100, 100));
+    Dimension d = c.getPreferredSize();
+    d.width = 200;
+    d.height = 200;
+    h.check(c.getPreferredSize(), new Dimension(100, 100));
+  }
 }