Build of "Che Core :: Metrics :: Core" module failed on test "FileStoresMeterTest"

[dmytro-ndp]

Describe the bug

"mvn clean install" on che failed:

Failure 1: "java.lang.AssertionError: expected [51] but found [36]"

17:41:42 [Build Che] 2019-08-12 14:41:42,037[main]             [INFO ] [o.e.j.s.handler.ContextHandler 865]  - Stopped o.e.j.s.ServletContextHandler@6743e411{/,null,UNAVAILABLE}
17:41:42 [Build Che] [ERROR] Tests run: 25, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.939 s <<< FAILURE! - in TestSuite
17:41:42 [Build Che] [ERROR] shouldBindFileStores(org.eclipse.che.core.metrics.FileStoresMeterTest)  Time elapsed: 0.04 s  <<< FAILURE!
17:41:42 [Build Che] java.lang.AssertionError: expected [51] but found [36]
17:41:42 [Build Che] 	at org.eclipse.che.core.metrics.FileStoresMeterTest.shouldBindFileStores(FileStoresMeterTest.java:39)

• https://codeready-workspaces-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/Single-Che-PR-check-E2E-Happy-path-tests-against-k8s-on-codenvy-slave9/61/console
• https://codeready-workspaces-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/Single-Che-PR-check-E2E-Happy-path-tests-against-k8s-on-codenvy-slave9/59/console
• https://codeready-workspaces-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/Single-Che-PR-check-E2E-Happy-path-tests-against-k8s-on-codenvy-slave9/63/console

Failure 2: "java.lang.AssertionError: expected [61] but found [30]"

21:15:47 [ERROR] Tests run: 25, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.716 s <<< FAILURE! - in TestSuite
21:15:47 [ERROR] shouldBindFileStores(org.eclipse.che.core.metrics.FileStoresMeterTest)  Time elapsed: 0.034 s  <<< FAILURE!
21:15:47 java.lang.AssertionError: expected [61] but found [30]
21:15:47 	at org.eclipse.che.core.metrics.FileStoresMeterTest.shouldBindFileStores(FileStoresMeterTest.java:39)

• https://codeready-workspaces-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/view/che-pr-tests/view/K8S/job/CHE-7-Maven-PR-build-checker-codenvy-slave9/90/console
• https://codeready-workspaces-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/view/che-pr-tests/view/K8S/job/CHE-7-Maven-PR-build-checker-codenvy-slave9/91/console

Che version

• latest
• nightly
• other: please specify

Steps to reproduce

mvn clean install in che root directory.

mvn version: 3.5.4

Runtime

• kubernetes (include output of kubectl version)
• Openshift (include output of oc version)
• minikube (include output of minikube version and kubectl version)
• minishift (include output of minishift version and oc version)
• docker-desktop + K8S (include output of docker version and kubectl version)
• other: Codenvy slave9 on AWS

It doesn't reproduce on Codenvy CI https://ci.codenvycorp.com/job/che-master-ci/