Fix event listening for duration field

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-core/src/main/java/org/eclipse/hawkbit/HawkbitServerProperties.java

@@ -9,13 +9,11 @@
 package org.eclipse.hawkbit;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
 
 /**
  * Properties for the server e.g. the server's URL which must be configured.
  * 
  */
-@Component
 @ConfigurationProperties("hawkbit.server")
 public class HawkbitServerProperties {
     /**

hawkbit-repository/src/test/java/org/eclipse/hawkbit/TestConfiguration.java

@@ -47,7 +47,7 @@ import com.mongodb.MongoClientOptions;
  */
 @Configuration
 @EnableGlobalMethodSecurity(prePostEnabled = true, mode = AdviceMode.ASPECTJ, proxyTargetClass = true, securedEnabled = true)
-@EnableConfigurationProperties({ DdiSecurityProperties.class })
+@EnableConfigurationProperties({ HawkbitServerProperties.class, DdiSecurityProperties.class })
 @Profile("test")
 public class TestConfiguration implements AsyncConfigurer {
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/tenantconfiguration/polling/DurationConfigField.java

@@ -26,7 +26,7 @@ import com.vaadin.ui.GridLayout;
  * duration in the DurationField or he can configure using the global duration
  * by changing the CheckBox.
  */
-public class DurationConfigField extends GridLayout implements ValueChangeListener, ConfigurationItem {
+public class DurationConfigField extends GridLayout implements ConfigurationItem {
 
     private static final long serialVersionUID = 1L;
 
@@ -50,15 +50,11 @@ public class DurationConfigField extends GridLayout implements ValueChangeListen
         this.addComponent(durationField, 1, 0);
         this.setComponentAlignment(durationField, Alignment.MIDDLE_LEFT);
 
-        checkBox.addValueChangeListener(this);
-        durationField.addValueChangeListener(this);
+        checkBox.addValueChangeListener(event->checkBoxChange());
+        durationField.addValueChangeListener(event->notifyConfigurationChanged());
     }
 
-    @Override
-    public void valueChange(final ValueChangeEvent event) {
-        if (event.getProperty() != checkBox) {
-            return;
-        }
+    private void checkBoxChange() {
         durationField.setEnabled(checkBox.getValue());
 
         if (!checkBox.getValue()) {