--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.aarch64/src/org/graalvm/compiler/replacements/aarch64/AArch64GraphBuilderPlugins.java	2018-10-12 20:19:50.000000000 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.aarch64/src/org/graalvm/compiler/replacements/aarch64/AArch64GraphBuilderPlugins.java	2018-10-12 20:19:48.000000000 -0700
@@ -32,6 +32,7 @@
 import static org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation.SIN;
 import static org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation.TAN;
 import static org.graalvm.compiler.serviceprovider.GraalServices.JAVA_SPECIFICATION_VERSION;
+import static org.graalvm.compiler.serviceprovider.GraalServices.Java11OrEarlier;
 import static org.graalvm.compiler.serviceprovider.GraalServices.Java8OrEarlier;
 
 import org.graalvm.compiler.bytecode.BytecodeProvider;
@@ -179,8 +180,8 @@
 
         for (JavaKind kind : unsafeJavaKinds) {
             Class<?> javaClass = kind == JavaKind.Object ? Object.class : kind.toJavaClass();
-
-            r.register4("getAndSet" + kind.name(), Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {
+            String kindName = (kind == JavaKind.Object && !Java11OrEarlier) ? "Reference" : kind.name();
+            r.register4("getAndSet" + kindName, Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {
                 @Override
                 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unsafe, ValueNode object, ValueNode offset, ValueNode value) {
                     // Emits a null-check for the otherwise unused receiver
@@ -192,7 +193,7 @@
             });
 
             if (kind != JavaKind.Boolean && kind.isNumericInteger()) {
-                r.register4("getAndAdd" + kind.name(), Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {
+                r.register4("getAndAdd" + kindName, Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {
                     @Override
                     public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unsafe, ValueNode object, ValueNode offset, ValueNode delta) {
                         // Emits a null-check for the otherwise unused receiver