JENA-836 : remove forced JDK setting of 1.6
JENA-836 : remove forced JDK setting of 1.6

atsolakid/jena,kamir/jena,tr3vr/jena,CesarPantoja/jena,apache/jena,apache/jena,adrapereira/jena,CesarPantoja/jena,adrapereira/jena,tr3vr/jena,tr3vr/jena,samaitra/jena,samaitra/jena,kidaa/jena,kidaa/jena,kidaa/jena,adrapereira/jena,jianglili007/jena,kamir/jena,kamir/jena,kidaa/jena,apache/jena,samaitra/jena,adrapereira/jena,apache/jena,CesarPantoja/jena,atsolakid/jena,samaitra/jena,tr3vr/jena,atsolakid/jena,apache/jena,atsolakid/jena,jianglili007/jena,adrapereira/jena,jianglili007/jena,jianglili007/jena,CesarPantoja/jena,kidaa/jena,tr3vr/jena,CesarPantoja/jena,CesarPantoja/jena,kamir/jena,atsolakid/jena,kidaa/jena,apache/jena,samaitra/jena,kamir/jena,jianglili007/jena,tr3vr/jena,apache/jena,atsolakid/jena,jianglili007/jena,kamir/jena,adrapereira/jena,jianglili007/jena,samaitra/jena,adrapereira/jena,tr3vr/jena,kidaa/jena,CesarPantoja/jena,samaitra/jena,apache/jena,kamir/jena,atsolakid/jena