circle: dockerize build to get java 8u72
circle: dockerize build to get java 8u72

Note: The `java:8u72` image provides openjdk, not oracle jdk.

treasure-data/digdag,treasure-data/digdag,treasure-data/digdag,KimuraTakaumi/digdag,treasure-data/digdag,treasure-data/digdag,KimuraTakaumi/digdag,KimuraTakaumi/digdag,treasure-data/digdag,KimuraTakaumi/digdag,KimuraTakaumi/digdag,treasure-data/digdag,KimuraTakaumi/digdag