All of your criticisms are kind of superficial and senseless:

- type annotations + HTML in comments - it is called javadoc

- 80 column limit - lowest common denominator for most people, also historically part of Sun code conventions for Java - http://www.oracle.com/technetwork/java/javase/documentation/...

- single character variable names - who cares, a symbol is a symbol

- variable declarations inside loops - more readable, no chance of referencing stale value outside of scope, and HotSpot will probably recompile anyhow