Can one pass UMLS username and password as API arguments?

[Peter Szolovits]

I am embedding cTakes as part of a larger (Java-based) processing program and 
would like to be able to pass the user’s UMLS username and password when 
setting up the cTakes API rather than embedding them in UIMA configuration 
files or having to give them as java vm arguments.  E.g., at some place such as 
a call to ClinicalPipelineFactory.getFastPipeline()g.  Is there a way to do 
this that I have not been able to find?  Thank you.  —Peter Szolovits