plugin = this;
modelTracker = new ServiceTracker<IModel, IModel>(context, IModel.class.getName(), null);
modelTracker.open();
proxyServiceTrackerCustomizer = new ProxyServiceTrackerCustomizer(context, statusLineContribution);
proxyServiceTracker = new ServiceTracker<IHttpProxyService, IHttpProxyService>(context, IHttpProxyService.class.getName(), proxyServiceTrackerCustomizer);
proxyServiceTracker.open();
setProxyListenerAddresses();
setProxyTransactionManipulator();