[bugfix] additional checks to avoid ArrayIndexOutOfBounds exceptions in ExtArrayNodeSet.
[bugfix] additional checks to avoid ArrayIndexOutOfBounds exceptions in ExtArrayNodeSet.

svn path=/branches/eXist-stable-1.2/; revision=8203

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