--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/extended/SwitchNode.java	Fri Feb 02 10:37:48 2018 -0500
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/extended/SwitchNode.java	Fri Feb 02 17:28:17 2018 -0800
@@ -228,7 +228,7 @@
 
     @Override
     public AbstractBeginNode getPrimarySuccessor() {
-        return this.defaultSuccessor();
+        return null;
     }
 
     /**