Fix line length error from CheckStyle
Add a white space after left brackets
Fix Javadoc errors from CheckStyle
Remove redundant modifiers
Rename parameters which conceive the member variables
Move plus signes into the beggining of lines
Add return in the end of files
Change permissions of protected members into private and then add the accessor methods
Remove a trailing space
Change the order of the method modifiers
Add private constructor for a utility class
rename a local variable following naming convention
Add a period in the first sentence of a javadoc header
Rename a parameter which conceive the member variable
Remove a uncatched exception from a method declartion
Fix indentation inconsistency
Merge pull request #105 from takahi-i/fix-checkstyle-errors

Fix checkstyle errors