src/hotspot/share/prims/jvmtiImpl.cpp

@@ -568,12 +568,11 @@
   if (signature_idx == -1) {
     _result = JVMTI_ERROR_INVALID_SLOT;
     return false;       // Incorrect slot index
   }
   Symbol*   sign_sym  = method_oop->constants()->symbol_at(signature_idx);
-  const char* signature = (const char *) sign_sym->as_utf8();
-  BasicType slot_type = char2type(signature[0]);
+  BasicType slot_type = Signature::basic_type(sign_sym);
 
   switch (slot_type) {
   case T_BYTE:
   case T_SHORT:
   case T_CHAR:

@@ -600,10 +599,11 @@
     Handle obj(cur_thread, JNIHandles::resolve_external_guard(jobj));
     NULL_CHECK(obj, (_result = JVMTI_ERROR_INVALID_OBJECT, false));
     Klass* ob_k = obj->klass();
     NULL_CHECK(ob_k, (_result = JVMTI_ERROR_INVALID_OBJECT, false));
 
+    const char* signature = (const char *) sign_sym->as_utf8();
     if (!is_assignable(signature, ob_k, cur_thread)) {
       _result = JVMTI_ERROR_TYPE_MISMATCH;
       return false;
     }
   }