Reporting an issue or making a feature request is a great way to contribute. Your feedback and the conversations that result from it provide a continuous flow of ideas.
Before you create a ticket, please take the time to research first.
If creating a ticket, please provide a self-sufficient description in the ticket. We understand this is extra work but the issue tracker is an important place of record for design discussions and decisions that can often be referenced long after the fix version, for example to revisit decisions, to understand the origin of a feature, and so on. i
Formatting the code: Please at least use the built in Formatter for Code of your IDE. in Eclipse it is ctrl + shift + f
Actually there is no coding guideline right now but at least the coding conventions of Oracle should be applied.
To get a better test coverage, provide tests to new features as they are implemented.