Code Documentation (JavaDocs)

Glowstone is sorely lacking in the documentation department. Improvements to in-code JavaDocs and comments are possible, and it might be worth writing up some separate code documentation or user guides on the [GitHub wiki](https://github.com/GlowstoneMC/Glowstone/wiki).

Methods which override or implement Bukkit interfaces do not need separate documentation unless there is an important note or exception to be made; otherwise, omit JavaDoc entirely and refer to implemented method JavaDoc.

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The issue names no specific files, tests, or entry points. Start by reviewing the Java source for missing JavaDocs and comments, while checking implemented Bukkit interface methods for documentation that should be omitted. Done would require a defined documentation scope and completed JavaDocs, comments, or user guides, but the issue does not specify which items are required.

Written by the indexing model from the issue text.