INSTANCE = this;
_bundleContext = context;
// track other bundles and fragments attached to this bundle that we
// should activate.
_packageAdminServiceTracker = new PackageAdminServiceTracker(context);
// track jetty Server instances that we should support as deployment targets
_jettyServerServiceTracker = new JettyServerServiceTracker();
context.addServiceListener(_jettyServerServiceTracker, "(objectclass=" + Server.class.getName() + ")");