diff --git a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/Activator.java b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/Activator.java
index 49c82a475bb..6a049d99f6c 100755
--- a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/Activator.java
+++ b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/Activator.java
@@ -154,7 +154,7 @@ public class Activator implements BundleActivator {
                 properties));
         properties.put(PreferenceConverter.KEY_PARAMETER_NAME, StoredDataMiningQueryPreferences.PREF_NAME);
         registrations.add(context.registerService(PreferenceConverter.class,
-                new GenericJSONPreferenceConverter<>(() -> new StoredDataMiningQueryPreferences()), properties));
+                new GenericJSONPreferenceConverter<>(StoredDataMiningQueryPreferences::new), properties));
         properties.put(PreferenceConverter.KEY_PARAMETER_NAME, SailorProfilePreferences.PREF_NAME);
         registrations.add(context.registerService(PreferenceConverter.class,
                 new GenericJSONPreferenceConverter<>(
@@ -162,7 +162,7 @@ public class Activator implements BundleActivator {
                 properties));
         properties.put(PreferenceConverter.KEY_PARAMETER_NAME, TrackedEventPreferences.PREF_NAME);
         registrations.add(context.registerService(PreferenceConverter.class,
-                new GenericJSONPreferenceConverter<>(() -> new TrackedEventPreferences()), properties));
+                new GenericJSONPreferenceConverter<>(TrackedEventPreferences::new), properties));
     }
 
     public static BundleContext getContext() {
diff --git a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/preferences/model/TrackedEventPreferences.java b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/preferences/model/TrackedEventPreferences.java
index 5afc09d55d4..d4745dee645 100644
--- a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/preferences/model/TrackedEventPreferences.java
+++ b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/preferences/model/TrackedEventPreferences.java
@@ -17,7 +17,7 @@ public class TrackedEventPreferences extends AbstractGenericSerializableSettings
 
     @Override
     protected void addChildSettings() {
-        trackedEvents = new SettingsList<>("trackedEvents", this, () -> new TrackedEventPreference());
+        trackedEvents = new SettingsList<>("trackedEvents", this, TrackedEventPreference::new);
     }
 
     public Iterable<TrackedEventPreference> getTrackedEvents() {