src/share/vm/classfile/classFileParser.cpp

*** 4347,4363 ****
  
  static void check_super_class_access(const InstanceKlass* this_klass, TRAPS) {
    assert(this_klass != NULL, "invariant");
    const Klass* const super = this_klass->super();
    if (super != NULL) {
      Reflection::VerifyClassAccessResults vca_result =
        Reflection::verify_class_access(this_klass, super, false);
      if (vca_result != Reflection::ACCESS_OK) {
        ResourceMark rm(THREAD);
        char* msg =  Reflection::verify_class_access_msg(this_klass, super, vca_result);
        if (msg == NULL) {
-         ResourceMark rm(THREAD);
          Exceptions::fthrow(
            THREAD_AND_LOCATION,
            vmSymbols::java_lang_IllegalAccessError(),
            "class %s cannot access its superclass %s",
            this_klass->external_name(),
--- 4347,4384 ----
  
  static void check_super_class_access(const InstanceKlass* this_klass, TRAPS) {
    assert(this_klass != NULL, "invariant");
    const Klass* const super = this_klass->super();
    if (super != NULL) {
+ 
+     // If the loader is not the boot loader then throw an exception if its
+     // superclass is in package jdk.internal.reflect and its loader is not a
+     // special reflection class loader
+     if (!this_klass->class_loader_data()->is_the_null_class_loader_data()) {
+       assert(super->is_instance_klass(), "super is not instance klass");
+       PackageEntry* super_package = super->package();
+       if (super_package != NULL &&
+           super_package->name()->fast_compare(vmSymbols::jdk_internal_reflect()) == 0 &&
+           !java_lang_ClassLoader::is_reflection_class_loader(this_klass->class_loader())) {
+         ResourceMark rm(THREAD);
+         Exceptions::fthrow(
+           THREAD_AND_LOCATION,
+           vmSymbols::java_lang_IllegalAccessError(),
+           "class %s loaded by %s cannot access jdk/internal/reflect superclass %s",
+           this_klass->external_name(),
+           this_klass->class_loader_data()->loader_name(),
+           super->external_name());
+         return;
+       }
+     }
+ 
      Reflection::VerifyClassAccessResults vca_result =
        Reflection::verify_class_access(this_klass, super, false);
      if (vca_result != Reflection::ACCESS_OK) {
        ResourceMark rm(THREAD);
        char* msg =  Reflection::verify_class_access_msg(this_klass, super, vca_result);
        if (msg == NULL) {
          Exceptions::fthrow(
            THREAD_AND_LOCATION,
            vmSymbols::java_lang_IllegalAccessError(),
            "class %s cannot access its superclass %s",
            this_klass->external_name(),