src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/HotSpotClassSubstitutions.java

*** 37,46 ****
--- 37,47 ----
  
  import org.graalvm.compiler.api.replacements.ClassSubstitution;
  import org.graalvm.compiler.api.replacements.MethodSubstitution;
  import org.graalvm.compiler.hotspot.word.KlassPointer;
  import org.graalvm.compiler.nodes.PiNode;
+ import org.graalvm.compiler.nodes.SnippetAnchorNode;
  
  // JaCoCo Exclude
  
  /**
   * Substitutions for {@link java.lang.Class} methods.
*** 76,86 ****
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (klass.isNull()) {
              // Class for primitive type
              return false;
          } else {
!             return klassIsArray(klass);
          }
      }
  
      @MethodSubstitution(isStatic = false)
      public static boolean isPrimitive(final Class<?> thisObj) {
--- 77,88 ----
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (klass.isNull()) {
              // Class for primitive type
              return false;
          } else {
!             KlassPointer klassNonNull = ClassGetHubNode.piCastNonNull(klass, SnippetAnchorNode.anchor());
!             return klassIsArray(klassNonNull);
          }
      }
  
      @MethodSubstitution(isStatic = false)
      public static boolean isPrimitive(final Class<?> thisObj) {
*** 90,128 ****
  
      @MethodSubstitution(isStatic = false)
      public static Class<?> getSuperclass(final Class<?> thisObj) {
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (!klass.isNull()) {
!             int accessFlags = klass.readInt(klassAccessFlagsOffset(INJECTED_VMCONFIG), KLASS_ACCESS_FLAGS_LOCATION);
              if ((accessFlags & Modifier.INTERFACE) == 0) {
!                 if (klassIsArray(klass)) {
                      return Object.class;
                  } else {
!                     KlassPointer superKlass = klass.readKlassPointer(klassSuperKlassOffset(INJECTED_VMCONFIG), KLASS_SUPER_KLASS_LOCATION);
                      if (superKlass.isNull()) {
                          return null;
                      } else {
!                         return readJavaMirror(superKlass);
                      }
                  }
              }
          } else {
              // Class for primitive type
          }
          return null;
      }
  
-     public static Class<?> readJavaMirror(KlassPointer klass) {
-         return PiNode.asNonNullClass(HubGetClassNode.readClass(klass));
-     }
- 
      @MethodSubstitution(isStatic = false)
      public static Class<?> getComponentType(final Class<?> thisObj) {
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (!klass.isNull()) {
!             if (klassIsArray(klass)) {
!                 return PiNode.asNonNullClass(klass.readObject(arrayKlassComponentMirrorOffset(INJECTED_VMCONFIG), ARRAY_KLASS_COMPONENT_MIRROR));
              }
          } else {
              // Class for primitive type
          }
          return null;
--- 92,129 ----
  
      @MethodSubstitution(isStatic = false)
      public static Class<?> getSuperclass(final Class<?> thisObj) {
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (!klass.isNull()) {
!             KlassPointer klassNonNull = ClassGetHubNode.piCastNonNull(klass, SnippetAnchorNode.anchor());
!             int accessFlags = klassNonNull.readInt(klassAccessFlagsOffset(INJECTED_VMCONFIG), KLASS_ACCESS_FLAGS_LOCATION);
              if ((accessFlags & Modifier.INTERFACE) == 0) {
!                 if (klassIsArray(klassNonNull)) {
                      return Object.class;
                  } else {
!                     KlassPointer superKlass = klassNonNull.readKlassPointer(klassSuperKlassOffset(INJECTED_VMCONFIG), KLASS_SUPER_KLASS_LOCATION);
                      if (superKlass.isNull()) {
                          return null;
                      } else {
!                         KlassPointer superKlassNonNull = ClassGetHubNode.piCastNonNull(superKlass, SnippetAnchorNode.anchor());
!                         return HubGetClassNode.readClass(superKlassNonNull);
                      }
                  }
              }
          } else {
              // Class for primitive type
          }
          return null;
      }
  
      @MethodSubstitution(isStatic = false)
      public static Class<?> getComponentType(final Class<?> thisObj) {
          KlassPointer klass = ClassGetHubNode.readClass(thisObj);
          if (!klass.isNull()) {
!             KlassPointer klassNonNull = ClassGetHubNode.piCastNonNull(klass, SnippetAnchorNode.anchor());
!             if (klassIsArray(klassNonNull)) {
!                 return PiNode.asNonNullClass(klassNonNull.readObject(arrayKlassComponentMirrorOffset(INJECTED_VMCONFIG), ARRAY_KLASS_COMPONENT_MIRROR));
              }
          } else {
              // Class for primitive type
          }
          return null;