Hello *,
I am running OH v2.5.6 as docker container (x86_64, debian) in my NAS.
I just upgraded from 2.5.3. to 2.5.6 and found some new warnings but there is also this one (see below) that I get since moving from the very old binding version to the “new” one from @Markinus. I ignored this warning all the time but now I finally decided to raise the question in the community if this is critical and if I should/can do something to get rid of it 
Thank you for your ideas what this warning is about and what to do against it:
Caused by: java.lang.IllegalStateException: ServiceLocatorImpl(__HK2_Generated_3,4,583982622) has been shut down
at org.jvnet.hk2.internal.ServiceLocatorImpl.checkState(ServiceLocatorImpl.java:2288) ~[?:?]
at org.jvnet.hk2.internal.ServiceLocatorImpl.getServiceHandleImpl(ServiceLocatorImpl.java:629) ~[?:?]
at org.jvnet.hk2.internal.ServiceLocatorImpl.getServiceHandle(ServiceLocatorImpl.java:622) ~[?:?]
at org.jvnet.hk2.internal.ServiceLocatorImpl.getServiceHandle(ServiceLocatorImpl.java:640) ~[?:?]
at org.jvnet.hk2.internal.FactoryCreator.getFactoryHandle(FactoryCreator.java:103) ~[?:?]
at org.jvnet.hk2.internal.FactoryCreator.dispose(FactoryCreator.java:173) ~[?:?]
at org.jvnet.hk2.internal.SystemDescriptor.dispose(SystemDescriptor.java:526) ~[?:?]
at org.glassfish.jersey.process.internal.RequestScope$Instance.remove(RequestScope.java:532) ~[?:?]
at org.glassfish.jersey.process.internal.RequestScope$Instance.release(RequestScope.java:549) ~[?:?]
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:319) ~[?:?]
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305) ~[?:?]
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) ~[?:?]
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473) ~[?:?]
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427) ~[?:?]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388) ~[?:?]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341) ~[?:?]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228) ~[?:?]
at com.eclipsesource.jaxrs.publisher.internal.ServletContainerBridge.service(ServletContainerBridge.java:76) ~[?:?]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:852) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:544) ~[bundleFile:9.4.20.v20190813]
at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) ~[bundleFile:?]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:536) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1581) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1307) ~[bundleFile:9.4.20.v20190813]
at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:293) ~[bundleFile:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:482) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1549) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1204) ~[bundleFile:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.20.v20190813]
at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) ~[bundleFile:?]
... 15 more