service trackers need to be opened to enable waiting for a service

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/Activator.java

@@ -24,6 +24,7 @@ public class Activator implements BundleActivator {
     public void start(BundleContext context) throws Exception {
         Activator.context = context;
         final ServiceTracker<SecurityService, SecurityService> tracker = new ServiceTracker<>(context, SecurityService.class, /* customizer */ null);
+        tracker.open();
         new Thread("ServiceTracker in bundle com.sap.sailing.gwt.ui waiting for SecurityService") {
             @Override
             public void run() {

java/com.sap.sse.security/src/com/sap/sse/security/Activator.java

@@ -64,6 +64,7 @@ public class Activator implements BundleActivator {
     private void waitForUserStoreService(BundleContext bundleContext) {
         context = bundleContext;
         final ServiceTracker<UserStore, UserStore> tracker = new ServiceTracker<>(bundleContext, UserStore.class, /* customizer */ null);
+        tracker.open();
         new Thread("ServiceTracker waiting for UserStore service") {
             @Override
             public void run() {