Install_jar, Remove_jar... How long should it take?

Can anyone from this group, that has some experience with the three functions Install_jar, Remove_jar and Replace_jar, tell me, how long should any one of these functions take to run, when called from dbaccess? Whatever I do on my Informix 9.40, running on the same machine as dbaccess with 1800Mhz Pentium, 400MB RAM, I can't make them run faster than about 5 seconds. Although it seems that 5 seconds is enough, and for these three functions it really is, I'm sure it has to do with another problem, that *any* Java function I call from dbaccess (or over ODBC), I wait the same 5 seconds even if it's an empty function without any statements. Maybe somebody can tell me, where I can find more about the mechanism of thread creation and activation, especially threads that belong to JVM. How could I see some trace of what is happening before one JVM thread starts to run. It almost blocks my screen and mouse. Almost the same question I posted on May, 21st "How to preserve state between calls to java UDRs" and didn't receive any answer. I'm still struggling with the same problem and I hope this time the question is simpler.