test/javax/swing/UIDefaults/6795356/bug6795356.java

rev 1576 : 6464022: Memory leak in JOptionPane.createDialog
Reviewed-by: alexp

*** 24,33 ****
--- 24,35 ----
  /*
   * @test
   * @bug 6795356
   * @summary Leak caused by javax.swing.UIDefaults.ProxyLazyValue.acc
   * @author Alexander Potochkin
+  * @library ../../regtesthelpers
+  * @build Util
   * @run main bug6795356
   */
  
  import java.lang.ref.WeakReference;
  import java.security.ProtectionDomain;
*** 56,100 ****
          }, new AccessControlContext(new ProtectionDomain[]{domain}));
  
          weakRef = new WeakReference<ProtectionDomain>(domain);
          domain = null;
  
!         // Generate OutOfMemory and check the weak ref
!         generateOOME();
  
          if (weakRef.get() != null) {
              throw new RuntimeException("Memory leak found!");
          }
          System.out.println("Test passed");
      }
- 
-     static void generateOOME() {
-         List<Object> bigLeak = new LinkedList<Object>();
-         boolean oome = false;
-         System.out.print("Filling the heap");
-         try {
-             for(int i = 0; true ; i++) {
-                 // Now, use up all RAM
-                 bigLeak.add(new byte[1024 * 1024]);
-                 System.out.print(".");
- 
-                 // Give the GC a change at that weakref
-                 if (i % 10 == 0) {
-                     System.gc();
-                     try {
-                         Thread.sleep(100);
-                     } catch (InterruptedException e) {
-                         e.printStackTrace();
-                     }
-                 }
-             }
-         } catch (OutOfMemoryError e) {
-             bigLeak = null;
-             oome = true;
-         }
-         System.out.println("");
-         if (!oome) {
-             throw new RuntimeException("Problem with test case - never got OOME");
-         }
-         System.out.println("Got OOME");
-     }
  }
--- 58,70 ----
          }, new AccessControlContext(new ProtectionDomain[]{domain}));
  
          weakRef = new WeakReference<ProtectionDomain>(domain);
          domain = null;
  
!         Util.generateOOME();
  
          if (weakRef.get() != null) {
              throw new RuntimeException("Memory leak found!");
          }
          System.out.println("Test passed");
      }
  }