[CBRD-25730] Fixes an issue where authorization fails and core occurs…

… after executing the ;connect command. (#5697)

http://jira.cubrid.org/browse/CBRD-25730

Fixes an issue where authorization fails and core occurs after executing the ;connect command.

src/object/authenticate_access_auth.cpp

@@ -56,25 +56,24 @@ const int AU_TYPE_SET_LEN[] =
   strlen ("EXECUTE")		/* DB_AUTH_EXECUTE */
 };
 
-MOP au_auth_accessor::au_class_mop = nullptr;
-
 au_auth_accessor::au_auth_accessor ()
   : m_au_obj (nullptr)
+  , m_au_class_mop (nullptr)
 {}
 
 int
 au_auth_accessor::create_new_auth ()
 {
-  if (au_class_mop == nullptr)
+  if (m_au_class_mop == nullptr)
     {
-      au_class_mop = sm_find_class (CT_CLASSAUTH_NAME);
-      if (au_class_mop == NULL)
+      m_au_class_mop = sm_find_class (CT_CLASSAUTH_NAME);
+      if (m_au_class_mop == nullptr)
 	{
 	  er_set (ER_ERROR_SEVERITY, ARG_FILE_LINE, ER_AU_MISSING_CLASS, 1, CT_CLASSAUTH_NAME);
 	}
     }
 
-  m_au_obj = db_create_internal (au_class_mop);
+  m_au_obj = db_create_internal (m_au_class_mop);
   if (m_au_obj == NULL)
     {
       assert (er_errid () != NO_ERROR);

src/object/authenticate_access_auth.hpp

@@ -46,7 +46,7 @@ class au_auth_accessor
 {
   private:
     // TODO: thread safe?
-    static MOP au_class_mop;
+    MOP m_au_class_mop;
 
     MOP m_au_obj;
 
@@ -72,9 +72,9 @@ class au_auth_accessor
     int update_auth (DB_OBJECT_TYPE obj_type, MOP grantor, MOP user, MOP obj_mop, DB_AUTH auth_type, int grant_option);
     int delete_auth (DB_OBJECT_TYPE obj_type, MOP grantor, MOP user, MOP obj_mop, DB_AUTH auth_type);
 
-    static MOP get_auth_class_mop ()
+    MOP get_auth_class_mop ()
     {
-      return au_class_mop;
+      return m_au_class_mop;
     }
 
     MOP get_auth_object ()