Apache Karaf stuck while shutting with Pax-Exam - junit

Question

I was running integrations tests with Pax-Exam and Karaf, tests got executed successfully but while shutting Karaf, it stuck on below and never resume
Pax-Exam = 4.11
Karaf = 4.2
[main] DEBUG o.ops4j.store.intern.TemporaryStore - Exit store(): 66cf6a516d0d1a670e78bd6b0be97f3da2a380b3
[main] DEBUG o.o.p.e.c.remote.RBCRemoteTarget - Preparing and Installing bundle (from stream )..
[main] DEBUG o.o.p.e.r.c.RemoteBundleContextClient - Packing probe into memory for true RMI. Hopefully things will fill in..
[main] DEBUG o.o.p.e.c.remote.RBCRemoteTarget - Installed bundle (from stream) as ID: 86
[main] DEBUG o.o.p.e.c.remote.RBCRemoteTarget - call [[TestAddress:PaxExam-bc970a6c-c656-4aa6-9300-35ded2bcde50 root:PaxExam-f6737e31-8f28-43e
0-847e-1f3f49649233]]
[main] DEBUG o.o.p.e.k.c.i.KarafTestContainer - Shutting down the test container (Pax Runner)
Following is output of JConsole for blocking
Name: main
State: BLOCKED on java.lang.Object#d53a0bb owned by: KarafJavaRunner
Total blocked: 106 Total waited: 105
Stack trace:
org.ops4j.pax.exam.karaf.container.internal.runner.InternalRunner.shutdown(InternalRunner.java:71)
org.ops4j.pax.exam.karaf.container.internal.runner.KarafJavaRunner.shutdown(KarafJavaRunner.java:120)
- locked org.ops4j.pax.exam.karaf.container.internal.runner.KarafJavaRunner#279baf5b
org.ops4j.pax.exam.karaf.container.internal.KarafTestContainer.stop(KarafTestContainer.java:600)
- locked org.ops4j.pax.exam.karaf.container.internal.KarafTestContainer#25dcfa62
org.ops4j.pax.exam.spi.reactors.AllConfinedStagedReactor.invoke(AllConfinedStagedReactor.java:87)
org.ops4j.pax.exam.junit.impl.ProbeRunner$2.evaluate(ProbeRunner.java:267)
org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
org.junit.runners.ParentRunner.run(ParentRunner.java:309)
org.ops4j.pax.exam.junit.impl.ProbeRunner.run(ProbeRunner.java:98)
org.ops4j.pax.exam.junit.PaxExam.run(PaxExam.java:93)
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Update:
One more thing i observed if i forcefully shut it and then if i run "mvn clean install" i get following error and i have to wait to get it run again
[←[1;31mERROR←[m] Failed to execute goal ←[32morg.apache.maven.plugins:maven-clean-plugin:2.5:clean←[m ←[1m(default-clean)←[m on project ←[36mosgi-unit-tes
ts-sample←[m: ←[1;31mFailed to clean project: Failed to delete C:\Users\..\target\pax
exam\e266ddcb-5fed-4997-8178-3d4944251418\system\org\apache\felix\org.apache.felix.framework\5.6.10\org.apache.felix.framework-5.6.10.jar←[m -> ←[1m[Help 1
Update2:
After exiting prompt still its running
C:\Program Files\Java\jdk1.8.0_162\bin>jps -l
1552 sun.tools.jps.Jps
4144
1420 org.apache.karaf.main.Main
C:\Program Files\Java\jdk1.8.0_162\bin>jps -l 1420
RMI Registry not available at 1420:1099
Exception creating connection to: 1420; nested exception is:
java.net.SocketException: Network is unreachable: connect
Update3:
if i kill this process, Pax resume and display message successful execution of Tests. infact before shutting all tests are already successfull but it not able to shut.
TASKKILL /F /PID 10692
Now i have no clue to handle this locking issue.
Update4:
Name: main
State: WAITING on org.apache.felix.framework.util.ThreadGate#b3d26d8
Total blocked: 6 Total waited: 7
Stack trace:
java.lang.Object.wait(Native Method)
org.apache.felix.framework.util.ThreadGate.await(ThreadGate.java:79)
org.apache.felix.framework.Felix.waitForStop(Felix.java:1075)
org.apache.karaf.main.Main.awaitShutdown(Main.java:640)
org.apache.karaf.main.Main.main(Main.java:188)
Name: FelixDispatchQueue
State: WAITING on java.util.ArrayList#3276dd18
Total blocked: 353 Total waited: 342
Stack trace:
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:502)
org.apache.felix.framework.EventDispatcher.run(EventDispatcher.java:1122)
org.apache.felix.framework.EventDispatcher.access$000(EventDispatcher.java:54)
org.apache.felix.framework.EventDispatcher$1.run(EventDispatcher.java:102)
java.lang.Thread.run(Thread.java:748)
Update5:
After spending lot of time i finally realize that by adding below bundles it got stuck, if i dont add them it works fine
wrappedBundle( maven("org.ops4j.pax.tinybundles", "tinybundles").versionAsInProject() ), //2.1.0
wrappedBundle( maven("biz.aQute.bnd", "bndlib").versionAsInProject() )//2.4.0
Regards,

Answer 1

I resolved issue by changing following jars version
maven("org.ops4j.pax.tinybundles", "tinybundles") from 2.1.0 to 3.0.0
maven("biz.aQute.bnd", "bndlib") from 2.4.0 to 3.5.0