Avoid application hanging problems (HP-UX only)
If your JDBC application hangs on your HP-UX server, check the setting for the PTHREAD_COMPAT_MODE environment variable on the HP-UX server. The PTHREAD_COMPAT_MODE environment variable should be set to 1. This variable tells the pthread library (libpthread) to run in 1 X 1 mode instead of MxN mode. 1 X 1 is the default mode now on HP-UX. Setting this environment variable should resolve the hang problem.