Omnilink Button do not work

Hi!

I’m trying to use OH2 & omnilink 1.9.0 add-on. There couple questions about buttons:

  1. Is there another widget for emulate the non-commit button than Switch item=TestButton?
  2. Omnilink button do not work. Can anybody help me?

my.items:
Switch TestButton “TestButton” (Buttons) {omnilink=“button:3”,autoupdate=“false”}

my.sitemap:
Switch item=TestButton label=“Test Button” mappings=[ON=“On”]

my.log after TestButton pressed:

2017-03-29 13:04:49.515 [DEBUG] [ng.omnilink.internal.OmniLinkBinding] - internalReceiveCommand() is called!!! TestButton ON
2017-03-29 13:04:49.527 [WARN ] [org.apache.karaf.services.eventadmin] - EventAdmin: Exception during event dispatch [org.osgi.service.event.Event [topic=openhab/command/TestButton] {bridgemarker=true, item=TestButton, command=ON} | {org.osgi.service.event.EventHandler, org.osgi.service.cm.ManagedService}={event.topics=openhab/command/*, service.pid=org.openhab.omnilink, component.name=org.openhab.binding.omnilink.binding, component.id=158, service.id=284, service.bundleid=184, service.scope=bundle} | Bundle(org.openhab.binding.omnilink_1.9.0 [184])]
java.lang.NullPointerException