diff -r 18d854d28d4e -r 8c2778d19ffa hotspot/src/share/vm/prims/jvmtiEnv.cpp
--- a/hotspot/src/share/vm/prims/jvmtiEnv.cpp	Thu Jan 07 08:14:45 2010 -0800
+++ b/hotspot/src/share/vm/prims/jvmtiEnv.cpp	Sat Jan 09 09:01:41 2010 -0800
@@ -133,7 +133,7 @@
     if (thread_oop == NULL) {
       return JVMTI_ERROR_INVALID_THREAD;
     }
-    if (!thread_oop->is_a(SystemDictionary::thread_klass())) {
+    if (!thread_oop->is_a(SystemDictionary::Thread_klass())) {
       return JVMTI_ERROR_INVALID_THREAD;
     }
     JavaThread* java_thread = java_lang_Thread::thread(thread_oop);
@@ -199,7 +199,7 @@
     if (k_mirror == NULL) {
       return JVMTI_ERROR_INVALID_CLASS;
     }
-    if (!k_mirror->is_a(SystemDictionary::class_klass())) {
+    if (!k_mirror->is_a(SystemDictionary::Class_klass())) {
       return JVMTI_ERROR_INVALID_CLASS;
     }
 
@@ -266,7 +266,7 @@
   oop mirror = JNIHandles::resolve_external_guard(object);
   NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT);
 
-  if (mirror->klass() == SystemDictionary::class_klass()) {
+  if (mirror->klass() == SystemDictionary::Class_klass()) {
     if (!java_lang_Class::is_primitive(mirror)) {
         mirror = java_lang_Class::as_klassOop(mirror);
         assert(mirror != NULL, "class for non-primitive mirror must exist");
@@ -327,7 +327,7 @@
     if (thread_oop == NULL) {
       return JVMTI_ERROR_INVALID_THREAD;
     }
-    if (!thread_oop->is_a(SystemDictionary::thread_klass())) {
+    if (!thread_oop->is_a(SystemDictionary::Thread_klass())) {
       return JVMTI_ERROR_INVALID_THREAD;
     }
     java_thread = java_lang_Thread::thread(thread_oop);
@@ -631,7 +631,7 @@
     thread_oop = JNIHandles::resolve_external_guard(thread);
   }
 
-  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) {
+  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass())) {
     return JVMTI_ERROR_INVALID_THREAD;
   }
 
@@ -869,7 +869,7 @@
 jvmtiError
 JvmtiEnv::InterruptThread(jthread thread) {
   oop thread_oop = JNIHandles::resolve_external_guard(thread);
-  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass()))
+  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass()))
     return JVMTI_ERROR_INVALID_THREAD;
 
   JavaThread* current_thread  = JavaThread::current();
@@ -906,7 +906,7 @@
   } else {
     thread_oop = JNIHandles::resolve_external_guard(thread);
   }
-  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass()))
+  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass()))
     return JVMTI_ERROR_INVALID_THREAD;
 
   Handle thread_obj(current_thread, thread_oop);
@@ -1072,7 +1072,7 @@
 jvmtiError
 JvmtiEnv::RunAgentThread(jthread thread, jvmtiStartFunction proc, const void* arg, jint priority) {
   oop thread_oop = JNIHandles::resolve_external_guard(thread);
-  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) {
+  if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass())) {
     return JVMTI_ERROR_INVALID_THREAD;
   }
   if (priority < JVMTI_THREAD_MIN_PRIORITY || priority > JVMTI_THREAD_MAX_PRIORITY) {