--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/SubstitutionsTest.java	Thu Jun 27 03:10:52 2019 +0200
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/SubstitutionsTest.java	Thu Jun 27 03:33:44 2019 +0200
@@ -130,7 +130,7 @@
     }
 
     @Override
-    protected boolean checkHighTierGraph(StructuredGraph graph) {
+    protected void checkHighTierGraph(StructuredGraph graph) {
         // Check that the graph contains the expected test nodes.
         NodeIterable<ReturnNode> retNodes = graph.getNodes().filter(ReturnNode.class);
         Assert.assertTrue("expected exactly one ReturnNode", retNodes.count() == 1);
@@ -151,8 +151,6 @@
         value.safeDelete();
         guard.safeDelete();
         graph.removeFixed(memory);
-
-        return true;
     }
 
     @Test