--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/LoadJavaMirrorWithKlassTest.java	Thu Jun 27 03:10:52 2019 +0200
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/LoadJavaMirrorWithKlassTest.java	Thu Jun 27 03:33:44 2019 +0200
@@ -73,13 +73,12 @@
     }
 
     @Override
-    protected boolean checkLowTierGraph(StructuredGraph graph) {
+    protected void checkLowTierGraph(StructuredGraph graph) {
         for (ConstantNode constantNode : graph.getNodes().filter(ConstantNode.class)) {
             assert constantNode.asJavaConstant() == null || constantNode.asJavaConstant().getJavaKind() != JavaKind.Object ||
                             constantNode.asJavaConstant().isDefaultForKind() : "Found unexpected object constant " +
                                             constantNode + ", this should have been removed by the LoadJavaMirrorWithKlassPhase.";
         }
-        return true;
     }
 
     public static Class<?> classConstant() {