--- a/c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotRuntime.java	Mon Apr 04 21:02:45 2011 +0200
+++ b/c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotRuntime.java	Mon Apr 11 10:22:05 2011 +0200
@@ -145,6 +145,23 @@
     }
 
     @Override
+    public RiType getRiType(CiKind kind) {
+        return getRiType(kind.toJavaClass());
+    }
+
+    @Override
+    public RiType getRiType(CiConstant constant) {
+        Object o = constant.asObject();
+        if (o == null) return null;
+        return getRiType(o.getClass());
+    }
+
+    @Override
+    public boolean isExceptionType(RiType type) {
+        return type.isSubtypeOf(getRiType(Throwable.class));
+    }
+
+    @Override
     public RiSnippets getSnippets() {
         throw new UnsupportedOperationException("getSnippets");
     }
@@ -206,8 +223,8 @@
     }
 
     @Override
-    public boolean compareConstantObjects(Object x, Object y) {
-        return x == y;
+    public boolean compareConstantObjects(CiConstant x, CiConstant y) {
+        return x.asObject() == y.asObject();
     }
 
     @Override
@@ -227,4 +244,9 @@
     public boolean supportsArrayIntrinsics() {
         return true;
     }
+
+    @Override
+    public int getArrayLength(CiConstant array) {
+        return Array.getLength(array.asObject());
+    }
 }