[SOLVED] HTTP disable thing from rule authentication error

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Thanks a lot. I tried now with ECMAScript 5.1 but get the following Error.
TypeError: ThingManager.setEnabled is not a function in at line number 7

This is my code
var FrameworkUtil = Java.type(“org.osgi.framework.FrameworkUtil”);
var _bundle = FrameworkUtil.getBundle(scriptExtension.class);
var bundle_context = _bundle.getBundleContext();
var ThingManager = bundle_context.getServiceReference(“org.openhab.core.thing.ThingManager”);
var ThingUID = Java.type(‘org.openhab.core.thing.ThingUID’);

ThingManager.setEnabled(new ThingUID(‘homematic:bridge:8472febe2e’), false); // disable Thing