GORA-530: Removed redundant logging on several try/catch

[alfonsonishikawa]

Hi!
In this patch basically I removed the redundand "logging + throw" when the log message is the same as in the exception.
Sorry for the mess of two pull requests :(
Please comment anything you find that don't convice you.

Thanks!

https://issues.apache.org/jira/browse/GORA-530

[renato2099]

Hi @alfonsonishikawa , thanks for doing this!
I think the first option was also ok because one thing is logging what the problem was and other throwing the exception for the application using Gora to deal with it as it fits better to the application.
what do you think @lewismc ?

[lewismc]

@alfonsonishikawa @renato2099 I think this looks good. Tidies up Exception handling quite nicely.

[lewismc]

@alfonsonishikawa can you commit to master?

[alfonsonishikawa]

Done, thank you!

[alfonsonishikawa]

I can't believe how sausage-fingers I must be. I left a strange Eclipse autoimport at https://github.com/apache/gora/blob/master/gora-core/src/main/java/org/apache/gora/persistency/impl/BeanFactoryImpl.java#L28 . If you don't mind, I will straight delete it, test and push without a pull request -it is not being used, safe-. How embarrassing. Sorry.

[lewismc]

+1