--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/VerifyDebugUsageTest.java	2017-09-12 22:24:26.530811685 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/VerifyDebugUsageTest.java	2017-09-12 22:24:26.385805151 -0700
@@ -344,7 +344,7 @@
         MetaAccessProvider metaAccess = providers.getMetaAccess();
         PhaseSuite<HighTierContext> graphBuilderSuite = new PhaseSuite<>();
         Plugins plugins = new Plugins(new InvocationPlugins());
-        GraphBuilderConfiguration config = GraphBuilderConfiguration.getDefault(plugins).withEagerResolving(true);
+        GraphBuilderConfiguration config = GraphBuilderConfiguration.getDefault(plugins).withEagerResolving(true).withUnresolvedIsError(true);
         graphBuilderSuite.appendPhase(new GraphBuilderPhase(config));
         HighTierContext context = new HighTierContext(providers, graphBuilderSuite, OptimisticOptimizations.NONE);
         OptionValues options = getInitialOptions();