--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/NodeUtil.java	Tue Apr 23 15:08:11 2013 +0200
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/NodeUtil.java	Tue Apr 23 15:34:06 2013 +0200
@@ -99,6 +99,21 @@
 
             this.parentOffset = parentOffsetTemp;
         }
+
+        /**
+         * (db) getters added to support AST cloning for parallel execution.
+         */
+        public long getParentOffset() {
+            return parentOffset;
+        }
+
+        public long[] getNodeFieldOffsets() {
+            return nodeFieldOffsets;
+        }
+
+        public long[] getNodeArrayFieldOffsets() {
+            return nodeArrayFieldOffsets;
+        }
     }
 
     public static class NodeIterator implements Iterator<Node> {
@@ -180,7 +195,7 @@
         return array;
     }
 
-    private static final Unsafe unsafe = getUnsafe();
+    protected static final Unsafe unsafe = getUnsafe();
 
     private static Unsafe getUnsafe() {
         try {