diff -r 2e18a3d0155b -r ee9da33d43ab hotspot/src/share/vm/prims/jni.cpp
--- a/hotspot/src/share/vm/prims/jni.cpp	Mon Mar 23 10:42:20 2009 -0400
+++ b/hotspot/src/share/vm/prims/jni.cpp	Wed Mar 25 13:09:28 2009 -0400
@@ -301,6 +301,10 @@
   klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,
                                                      Handle(), &st, CHECK_NULL);
 
+  if (TraceClassResolution && k != NULL) {
+    trace_class_resolution(k);
+  }
+
   cls = (jclass)JNIHandles::make_local(
     env, Klass::cast(k)->java_mirror());
   return cls;
@@ -365,6 +369,10 @@
   result = find_class_from_class_loader(env, sym, true, loader,
                                         protection_domain, true, thread);
 
+  if (TraceClassResolution && result != NULL) {
+    trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+  }
+
   // If we were the first invocation of jni_FindClass, we enable compilation again
   // rather than just allowing invocation counter to overflow and decay.
   // Controlled by flag DelayCompilationDuringStartup.
@@ -2646,7 +2654,12 @@
   Handle protection_domain; // null protection domain
 
   symbolHandle sym = oopFactory::new_symbol_handle(name, CHECK_NULL);
-  return find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
+  jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
+
+  if (TraceClassResolution && result != NULL) {
+    trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+  }
+  return result;
 }
 
 // These lookups are done with the NULL (bootstrap) ClassLoader to