Fix:
http://cr.openjdk.java.net/~stefank/8195613/webrev.01/

diff --git a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java
--- a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java
+++ b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java
@@ -563,7 +588,7 @@
       nameAddr = entryAddr.getAddressAt(longConstantEntryNameOffset);
       if (nameAddr != null) {
         String name = CStringUtilities.getString(nameAddr);
- int value = (int) entryAddr.getCIntegerAt(longConstantEntryValueOffset, C_INT64_SIZE, true);
+ long value = entryAddr.getCIntegerAt(longConstantEntryValueOffset, C_INT64_SIZE, true);
 
         // Be a little resilient
         Long oldValue = lookupLongConstant(name, false);