diff -r bcc2354430ff -r ef01e0dccd63 jdk/src/share/classes/sun/management/MemoryUsageCompositeData.java
--- a/jdk/src/share/classes/sun/management/MemoryUsageCompositeData.java	Thu Apr 10 09:02:22 2008 -0700
+++ b/jdk/src/share/classes/sun/management/MemoryUsageCompositeData.java	Thu Apr 10 10:47:13 2008 -0700
@@ -68,7 +68,7 @@
                                             memoryUsageItemValues);
         } catch (OpenDataException e) {
             // Should never reach here
-            throw Util.newInternalError(e);
+            throw new AssertionError(e);
         }
     }
 
@@ -79,7 +79,7 @@
                 MappedMXBeanType.toOpenType(MemoryUsage.class);
         } catch (OpenDataException e) {
             // Should never reach here
-            throw Util.newInternalError(e);
+            throw new AssertionError(e);
         }
     }