Use a large java app for cfbench CI task
Use a large java app for cfbench CI task

[finishes #153114195]

Signed-off-by: Georgi Sabev <cd7643e50243a10153b49cb72b4bdbf8b48cb045@gmail.com>

cloudfoundry-incubator/guardian-release,cloudfoundry-incubator/guardian-release,cloudfoundry-incubator/guardian-release