--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.virtual/src/org/graalvm/compiler/virtual/phases/ea/EffectsClosure.java	2019-03-28 07:37:37.668816097 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.virtual/src/org/graalvm/compiler/virtual/phases/ea/EffectsClosure.java	2019-03-28 07:37:37.288813562 +0100
@@ -428,7 +428,7 @@
     protected abstract class MergeProcessor {
 
         private final Block mergeBlock;
-        private final AbstractMergeNode merge;
+        protected final AbstractMergeNode merge;
 
         protected final GraphEffectList mergeEffects;
         protected final GraphEffectList afterMergeEffects;