try jdk8 on travis CI with a revised timeout (35 mins this time)
try jdk8 on travis CI with a revised timeout (35 mins this time)

shils/groovy,fpavageau/groovy,armsargis/groovy,paulk-asert/incubator-groovy,dpolivaev/groovy,traneHead/groovy-core,paulk-asert/groovy,jwagenleitner/incubator-groovy,armsargis/groovy,russel/incubator-groovy,bsideup/incubator-groovy,apache/groovy,russel/groovy,shils/groovy,apache/incubator-groovy,bsideup/incubator-groovy,russel/incubator-groovy,russel/incubator-groovy,paulk-asert/incubator-groovy,jwagenleitner/incubator-groovy,graemerocher/incubator-groovy,shils/incubator-groovy,graemerocher/incubator-groovy,avafanasiev/groovy,apache/groovy,shils/incubator-groovy,armsargis/groovy,fpavageau/groovy,paulk-asert/incubator-groovy,shils/incubator-groovy,alien11689/incubator-groovy,dpolivaev/groovy,apache/groovy,jwagenleitner/groovy,traneHead/groovy-core,traneHead/groovy-core,jwagenleitner/groovy,paulk-asert/incubator-groovy,bsideup/incubator-groovy,avafanasiev/groovy,alien11689/incubator-groovy,armsargis/groovy,paulk-asert/groovy,shils/groovy,fpavageau/groovy,fpavageau/groovy,shils/incubator-groovy,russel/incubator-groovy,jwagenleitner/incubator-groovy,shils/groovy,paulk-asert/groovy,traneHead/groovy-core,apache/incubator-groovy,jwagenleitner/incubator-groovy,apache/incubator-groovy,apache/groovy,paulk-asert/groovy,russel/groovy,alien11689/incubator-groovy,jwagenleitner/groovy,avafanasiev/groovy,graemerocher/incubator-groovy,dpolivaev/groovy,dpolivaev/groovy,alien11689/incubator-groovy,avafanasiev/groovy,jwagenleitner/groovy,bsideup/incubator-groovy,graemerocher/incubator-groovy,apache/incubator-groovy,paulk-asert/incubator-groovy,russel/groovy,russel/groovy