--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/CopyOfVirtualizationTest.java	Thu Jun 27 03:10:52 2019 +0200
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/CopyOfVirtualizationTest.java	Thu Jun 27 03:33:44 2019 +0200
@@ -35,9 +35,9 @@
 public class CopyOfVirtualizationTest extends GraalCompilerTest {
 
     @Override
-    protected boolean checkMidTierGraph(StructuredGraph graph) {
+    protected void checkMidTierGraph(StructuredGraph graph) {
         assertTrue(graph.getNodes().filter(node -> node instanceof NewArrayNode).count() == 0, "shouldn't require allocation in %s", graph);
-        return super.checkMidTierGraph(graph);
+        super.checkMidTierGraph(graph);
     }
 
     public byte byteCopyOfVirtualization(int index) {