HR fix review: #214647 - Reproducible deadlock oracle.cloud vs. non-native keyrings?

Description: http://netbeans.org/bugzilla/show_bug.cgi?id=214647
Deadlock happens when native keyring is not available and user is using 
Oracle Cloud server.

Impact assessment: I do not know how many users do not have "native 
keyring" in their OS but combination of that and usage or Oracle Cloud 
which stores credentials in key ring can deadlock the IDE during 
startup. In Martin's case deadlock happened during each IDE startup.

Risk assessment: Fix is safe - all it does is it delays accessing key 
ring information which previously were unnecessarily read too early. 
Consequently that avoids deadlock from happening during IDE startup.

Reviewed and tested by Martin Fousek. QA verification is going to happen 
soon.

Changeset: http://hg.netbeans.org/web-main/rev/3892095d33f7

Thanks for the review,
-David