- Use tabs
- Wrap lines at 120 characters
- Make all local variables, method and function arguments, and utility classes final (as much as I hate Java's verbosity, I'm in the habit of doing things this way and don't feel like breaking it)
- Follow coding convention used elsewhere in the project (more or less BSD KNF style); eg. opening brace on the same line, spaces around operators, etc.
- Don't worry about it too much… it's just a plugin.