VcsRootDetector and NotifierError tests fixed (there were .git in T ot tmp dir above, so appropriate checker found its root,then error)

*roots for another checker (GitRootChecker) shouldn't be compared with expected because above test dir could be .git or something else;
*full parameter removed as unused;
*style
fix outdated javadoc (completion is performed in a read action)
java: .class stub builder fixed

By somewhat reason an inner classes section of a .class file may contain classes not belonging to the host; such a strangers should be filtered out by name.ˆ
Obsolete test disabled