Eliminated unneeded round trip when using token authentication to

connect to the database.

Author: anthony-tuininga

doc/src/release_notes.rst

@@ -18,6 +18,8 @@ Thin Mode Changes
 #)  Fixed bug which caused a cursor leak if an error was thrown while
     processing the execution of a query.
 #)  Fixed bugs in the implementation of the statement cache.
+#)  Eliminated unneeded round trip when using token authentication to connect
+    to the database.
 
 Thick Mode Changes
 ++++++++++++++++++

src/oracledb/impl/thin/protocol.pyx

@@ -226,7 +226,8 @@ cdef class Protocol:
         auth_message = conn_impl._create_message(AuthMessage)
         auth_message._set_params(params, description)
         self._process_message(auth_message)
-        self._process_message(auth_message)
+        if auth_message.resend:
+            self._process_message(auth_message)
 
         # mark protocol to indicate that connect is no longer in progress; this
         # allows the normal break/reset mechanism to fire