Concurrent modification exception in AbstractTopologyManager.close() #229
Description
Because of the fail-fast nature of the underlying maps and lists in the AbstractTopologyManager registrations field, when close() is called a concurrent modification exception will happen
RROR: Bundle org.eclipse.ecf.osgi.services.distribution [46] Error stopping file:/C:/Users/slewi/.m2/repository/org/eclipse/ecf/org.eclipse.ecf.osgi.services.distribution/2.2.0/org.eclipse.ecf.osgi.services.distribution-2.2.0.jar (org.osgi.framework.BundleException: Activator stop error in bundle org.eclipse.ecf.osgi.services.distribution [46].)
java.util.ConcurrentModificationException
at java.base/java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1855)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at org.eclipse.ecf.osgi.services.remoteserviceadmin.AbstractTopologyManager.close(AbstractTopologyManager.java:118)
at org.eclipse.ecf.osgi.services.remoteserviceadmin.TopologyManager.deactivate(TopologyManager.java:327)
at org.eclipse.ecf.internal.osgi.services.distribution.BasicTopologyManager.deactivate(BasicTopologyManager.java:41)
at org.eclipse.ecf.internal.osgi.services.distribution.BasicTopologyManager.stop(BasicTopologyManager.java:36)
at org.eclipse.ecf.internal.osgi.services.distribution.Activator.stop(Activator.java:39)
at org.apache.felix.framework.util.SecureAction.stopActivator(SecureAction.java:871)
at org.apache.felix.framework.Felix.stopBundle(Felix.java:2822)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1584)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:297)
at java.base/java.lang.Thread.run(Thread.java:833)