--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/HotSpotClassSubstitutions.java	2019-03-12 08:09:21.311480568 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/HotSpotClassSubstitutions.java	2019-03-12 08:09:20.935478126 +0100
@@ -25,6 +25,7 @@
 package org.graalvm.compiler.hotspot.replacements;
 
 import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfig.INJECTED_VMCONFIG;
+import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfigBase.INJECTED_METAACCESS;
 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.ARRAY_KLASS_COMPONENT_MIRROR;
 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.KLASS_ACCESS_FLAGS_LOCATION;
 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.KLASS_MODIFIER_FLAGS_LOCATION;
@@ -38,11 +39,16 @@
 import java.lang.reflect.Modifier;
 
 import org.graalvm.compiler.api.replacements.ClassSubstitution;
+import org.graalvm.compiler.api.replacements.Fold;
 import org.graalvm.compiler.api.replacements.MethodSubstitution;
 import org.graalvm.compiler.hotspot.word.KlassPointer;
+import org.graalvm.compiler.nodes.ConstantNode;
 import org.graalvm.compiler.nodes.PiNode;
 import org.graalvm.compiler.nodes.SnippetAnchorNode;
 
+import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
 // JaCoCo Exclude
 
 /**
@@ -92,6 +98,11 @@
         return klass.isNull();
     }
 
+    @Fold
+    public static ResolvedJavaType getObjectType(@Fold.InjectedParameter MetaAccessProvider metaAccesss) {
+        return metaAccesss.lookupJavaType(Object.class);
+    }
+
     @MethodSubstitution(isStatic = false)
     public static Class<?> getSuperclass(final Class<?> thisObj) {
         KlassPointer klass = ClassGetHubNode.readClass(thisObj);
@@ -100,7 +111,7 @@
             int accessFlags = klassNonNull.readInt(klassAccessFlagsOffset(INJECTED_VMCONFIG), KLASS_ACCESS_FLAGS_LOCATION);
             if ((accessFlags & Modifier.INTERFACE) == 0) {
                 if (klassIsArray(klassNonNull)) {
-                    return Object.class;
+                    return ConstantNode.forClass(getObjectType(INJECTED_METAACCESS));
                 } else {
                     KlassPointer superKlass = klassNonNull.readKlassPointer(klassSuperKlassOffset(INJECTED_VMCONFIG), KLASS_SUPER_KLASS_LOCATION);
                     if (superKlass.isNull()) {