We see these kind of failures in karaf 4 SFT:

6:35:16 -------------------------------------------------------
16:35:16 T E S T S
16:35:16 -------------------------------------------------------
16:35:18 Running org.opendaylight.odlparent.featuretest.SingleFeatureTest
16:36:03 Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 43.23 sec <<< FAILURE! - in org.opendaylight.odlparent.featuretest.SingleFeatureTest
16:36:03 installFeatureCatchAndLog(org.opendaylight.odlparent.featuretest.SingleFeatureTest)[repoUrl: file:/w/workspace/netvirt-distribution-check-nitrogen/distribution/features/repos/test/target/feature/feature.xml, Feature: features-test 0.7.0.SNAPSHOT] Time elapsed: 42.574 sec <<< FAILURE!
16:36:03 java.lang.AssertionError: diag: Stopping

{Starting=0, Unknown=0, Stopping=1, Waiting=0, Active=326, Resolved=4, GracePeriod=4, Failure=0, Installed=0}
16:36:03 1. NOK org.opendaylight.aaa.cert: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.aaa.encrypt.AAAEncryptionService)
16:36:03
16:36:03 2. NOK org.opendaylight.aaa.encrypt-service: OSGi state = Active, Karaf bundleState = Stopping
16:36:03 3. NOK org.opendaylight.aaa.shiro: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.aaa.cert.api.ICertificateManager)
16:36:03
16:36:03 4. NOK org.opendaylight.lispflowmapping.mappingservice.implementation: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 Available DOM RPC for binding RPC: interface org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.OdlLispSbService
16:36:03
16:36:03 5. NOK org.opendaylight.lispflowmapping.mappingservice.southbound: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.controller.md.sal.binding.api.NotificationPublishService)
16:36:03
16:36:03 at org.opendaylight.odlparent.bundles4test.TestBundleDiag.checkBundleDiagInfos(TestBundleDiag.java:86)
16:36:03 at org.opendaylight.odlparent.bundles4test.TestBundleDiag.checkBundleDiagInfos(TestBundleDiag.java:50)
16:36:03 at org.opendaylight.odlparent.featuretest.SingleFeatureTest.installFeature(SingleFeatureTest.java:387)
16:36:03 at org.opendaylight.odlparent.featuretest.SingleFeatureTest.installFeatureCatchAndLog(SingleFeatureTest.java:338)
16:36:03 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
16:36:03 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
16:36:03 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
16:36:03 at java.lang.reflect.Method.invoke(Method.java:498)
16:36:03 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
16:36:03 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
16:36:03 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
16:36:03 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
16:36:03 at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
16:36:03 at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
16:36:03 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
16:36:03 at java.lang.Thread.run(Thread.java:745)
16:36:03
16:36:03
16:36:03 Results :
16:36:03
16:36:03 Failed tests:
16:36:03 diag: Stopping {Starting=0, Unknown=0, Stopping=1, Waiting=0, Active=326, Resolved=4, GracePeriod=4, Failure=0, Installed=0}

16:36:03 1. NOK org.opendaylight.aaa.cert: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.aaa.encrypt.AAAEncryptionService)
16:36:03
16:36:03 2. NOK org.opendaylight.aaa.encrypt-service: OSGi state = Active, Karaf bundleState = Stopping
16:36:03 3. NOK org.opendaylight.aaa.shiro: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.aaa.cert.api.ICertificateManager)
16:36:03
16:36:03 4. NOK org.opendaylight.lispflowmapping.mappingservice.implementation: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 Available DOM RPC for binding RPC: interface org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.OdlLispSbService
16:36:03
16:36:03 5. NOK org.opendaylight.lispflowmapping.mappingservice.southbound: OSGi state = Active, Karaf bundleState = GracePeriod, due to: Blueprint
16:36:03 4/25/17 4:35 PM
16:36:03 Missing dependencies:
16:36:03 (objectClass=org.opendaylight.controller.md.sal.binding.api.NotificationPublishService)
16:36:03
16:36:03
16:36:03