small changes to solve some small issues

[joancf]

no begin/end in wsdresult
crash when no POS (This happens in multiwords) for WSDAnnotatorContextPOS
-The current option is to set up NOUN as default POS

• the other one is to generate an exception with a clear message
• another option is to create a method that does the same as WSDAnnotatorContextBase (with no pos) and call it when pos is not available.

[reckart]

Jenkins, can you test this please?

[ukp-svc-jenkins]

Can one of the admins verify this patch?

[logological]

@joancf, if you are still interested in contributing, could you please split this into separate pull requests for each of the unrelated issues you are fixing? The begin/end fix is fine but some work/discussion is needed for the exception handling issue.

[joancf]

That's 4 years old, I'm sorry, I'm not using UIMA right now. I have change computer, I don't have the project .
But I think the changes are simple, ;-)