Thanks for posting this information. Very helpful.
In my case a mock service in SoapUI 3.0.1 was having problems using SSL with JDK 1.5. Intermittently, when the mock service started, it would use HTTP instead of HTTPS, but no error message was written to the jetty log.
After updating to JDK 1.6, the "Could not generate DH keypair" message appeared in the jetty log when attempting to access the mock service via HTTPS.
I updated to bcprov-jdk15-144.jar, and that appears to have fixed the problem (now using JDK 1.6).
