Yesterday I added a new driver, the HXTT driver for MS Access. It worked at first, but when I quit & restarted, Squirrel-SQL wouldn't finish booting up. The splash screen comes up & gets through the progress bar, but when the splash is taken down, the program quits. I opened up the bundle & ran in a command line using the boot shell script. I got the console (see attachment) with the exception at the bottom. This is snipped from that console:
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
Caused by: java.lang.NullPointerException
If I can provide any more information, feel free to contact me at firstname.lastname@example.org.