--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/IndirectCallTargetNode.java	2017-03-20 17:40:26.000000000 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/IndirectCallTargetNode.java	2017-03-20 17:40:26.000000000 -0700
@@ -55,6 +55,9 @@
 
     @Override
     public String targetName() {
+        if (targetMethod() == null) {
+            return "[unknown]";
+        }
         return targetMethod().format("Indirect#%h.%n");
     }
 }