update java version from 1.6 to 1.8
update java version from 1.6 to 1.8

mwernimont/glri-catalog,jlucido2/glri-catalog,USGS-CIDA/glri-catalog,USGS-CIDA/glri-catalog,mwernimont/glri-catalog,ee-usgs/glri-catalog,mwernimont/glri-catalog,jlucido2/glri-catalog,jlucido2/glri-catalog,ee-usgs/glri-catalog,ee-usgs/glri-catalog,USGS-CIDA/glri-catalog