Handle the vals that never used#565

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WangTaoTheTonic wants to merge 2 commits intoapache:masterfrom

WangTaoTheTonic:master

Commits on Apr 26, 2014

Handle the vals that never used
WangTaoTheTonic
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Commits on Apr 27, 2014

Handle the unused assignment, method parameters and symbol inspected by Intellij IDEA
WangTaoTheTonic
committed