# HG changeset patch
# User Michael Van De Vanter  <michael.van.de.vanter@oracle.com>
# Date 1389934332 28800
# Node ID 8d99131c8940ffe252efef8c5da671def090a455
# Parent  f150a67b99e310dc8fb90cb66bbcb80fe206d922
Truffle/Instrumentation:  fix NPE in InstrumentationProbeNode

diff -r f150a67b99e3 -r 8d99131c8940 graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProbeNode.java
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProbeNode.java	Thu Jan 16 17:23:50 2014 -0800
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProbeNode.java	Thu Jan 16 20:52:12 2014 -0800
@@ -373,7 +373,9 @@
                 if (stepping) {
                     getContext().getDebugManager().haltedAt(astNode, frame.materialize());
                 }
-                next.internalEnter(astNode, frame);
+                if (next != null) {
+                    next.internalEnter(astNode, frame);
+                }
             }
         }