Minor Description
We have around 900 violations of Indentation checkstyle, when our indentation doesn't match the expected one. Looks like Hadoop's style is fairly close to the one we're using, so I plan just to adjust our indentation to whatever checkstyle expects. There are 2 kinds of violations:
1) wrong amount of whitespace before the line start
2) annotation on the same line with definition (which checkstyle treats as equal amount of whitespace) - should be ok to move to separate line