It's JNDI itself. JNDI uses ABANDON requests. Are you using persistent
search at all? Another 389 user reported similar problems caused by
improper handling of JNDI persistent searches + ABANDON requests.
Although this looks different, both issues have JNDI and ABANDON in common.
We are not using persistent search at all. I will try to track down what in
our code creates the ABANDON requests but might take me a bit. Once
successfull I'll get you something that causes the ABANDON to show up
followed by a startTLS.