Fix lint warnings in Syncbase Java API code.
Made a pass through the Syncbase API code fixing Lint warnings,
* Added sanity check in Syncbase.login to make sure we don't get a
null pointer exception.
* Replace throwing of RuntimeException with throwing of more specific
standard unchecked exception, and add @throws tag to javadoc
documenting them.
* Reduce visibility of fields and methods from protected to
package-local or private.
* Make fields final where possible.
* Remove unused variables.
* Remove unnecessary casts.
* Add missing text after Javadoc tags.
* Remove unused SyncgroupSpec return type from Syncgroup.join
* Replace Arrays.asList(x) with Collections.singletonList(x)
Change-Id: I91b56fab9019894ba8bcbde8529ab8fb4563482a
32 files changed
