[bugfix] fixed potential NPE in FunctionCall. The NPE should never happen if the class is correctly used, but anyway, a check can't do any harm. Port of rev8016.
[bugfix] fixed potential NPE in FunctionCall. The NPE should never happen if the class is correctly used, but anyway, a check can't do any harm. Port of rev8016.

svn path=/branches/eXist-stable-1.2/; revision=8026

wshager/exist,jessealama/exist,lcahlander/exist,zwobit/exist,windauer/exist,wolfgangmm/exist,jensopetersen/exist,dizzzz/exist,jensopetersen/exist,joewiz/exist,ljo/exist,patczar/exist,jessealama/exist,olvidalo/exist,lcahlander/exist,patczar/exist,eXist-db/exist,kohsah/exist,ambs/exist,opax/exist,lcahlander/exist,patczar/exist,ambs/exist,dizzzz/exist,hungerburg/exist,wshager/exist,lcahlander/exist,lcahlander/exist,ljo/exist,zwobit/exist,RemiKoutcherawy/exist,joewiz/exist,adamretter/exist,jessealama/exist,RemiKoutcherawy/exist,adamretter/exist,wolfgangmm/exist,windauer/exist,jessealama/exist,lcahlander/exist,ljo/exist,hungerburg/exist,adamretter/exist,kohsah/exist,ljo/exist,olvidalo/exist,RemiKoutcherawy/exist,zwobit/exist,RemiKoutcherawy/exist,MjAbuz/exist,adamretter/exist,zwobit/exist,kohsah/exist,ambs/exist,windauer/exist,jensopetersen/exist,wolfgangmm/exist,shabanovd/exist,olvidalo/exist,shabanovd/exist,joewiz/exist,wshager/exist,jensopetersen/exist,kohsah/exist,wolfgangmm/exist,eXist-db/exist,MjAbuz/exist,shabanovd/exist,patczar/exist,windauer/exist,dizzzz/exist,olvidalo/exist,wshager/exist,patczar/exist,hungerburg/exist,eXist-db/exist,MjAbuz/exist,dizzzz/exist,opax/exist,zwobit/exist,joewiz/exist,MjAbuz/exist,kohsah/exist,adamretter/exist,ljo/exist,ambs/exist,ambs/exist,joewiz/exist,eXist-db/exist,joewiz/exist,adamretter/exist,shabanovd/exist,shabanovd/exist,ambs/exist,wolfgangmm/exist,MjAbuz/exist,windauer/exist,opax/exist,jessealama/exist,jessealama/exist,RemiKoutcherawy/exist,eXist-db/exist,shabanovd/exist,wshager/exist,windauer/exist,wshager/exist,jensopetersen/exist,MjAbuz/exist,opax/exist,jensopetersen/exist,eXist-db/exist,olvidalo/exist,RemiKoutcherawy/exist,patczar/exist,hungerburg/exist,kohsah/exist,wolfgangmm/exist,zwobit/exist,ljo/exist,hungerburg/exist,opax/exist,dizzzz/exist,dizzzz/exist