fixed instantiate commadn in key sources

6 jobs for gradle in 0 seconds
Name Stage Failure
setup Setup There is an unknown failure, please try again
Running with gitlab-ci-multi-runner 9.4.2 (6d06f2e)
on hoare@bw-cloud (e9911ae2)
Using Docker executor with image key-ant-openjdk-8:latest ...
Using docker image sha256:e0d7f1f0d26e35bee4d8c0860c42e89463ae2320de51bc50d0a26540850a703e for predefined container...
Using locally found image version due to if-not-present pull policy
Using docker image key-ant-openjdk-8:latest ID=sha256:91ebff51dc0fc59e759bda7318b03146ec88426a3915291e0816fad025f3d0c2 for build container...
ERROR: Job failed (system failure): Error response from daemon: grpc: the connection is unavailable