Ensure postgres connections are closed properly and other minor changes

[jeanetteclark]

This addresses:

• ensure postgres connections aren't dropped #420
• prevent nullPointer in dispatch.setupJep() #416

[artntek]

I'm a big fan of reformatting files to comply with the codestyle settings. There are a couple of gotchas to watch out for, though:

1. If I reformat an entire file, I can't trust the IDE completely. I always find I need to look through the resulting code and make manual tweaks to the formatting/flow, because it doesn't wrap javadoc comments well, for example, or breaks concatenated strings over multiple lines needlessly etc. I flagged a few of these in your code below, but there were many more I didn't flag.
2. When you reformat an entire file, it's almost impossible for a reviewer to find the actual code changes you have made, so they may miss an important detail. The best approach is to split the reformatting and the code changes across 2 separate PRs, but since that's not always possible, a good alternative is to at least push separate commits for the reformat and the code changes. Failing both of those, a final option is to addd some comments to the PR to show where the actual code changes are.

I searched for try (, so found your changes, but I hope I didn't miss anything else :-)