Fix test properties

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

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

@@ -9,11 +9,13 @@
 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-core/src/main/java/org/eclipse/hawkbit/tenancy/configuration/validator/TenantConfigurationPollingDurationValidator.java

@@ -29,6 +29,8 @@ public class TenantConfigurationPollingDurationValidator implements TenantConfig
     private final Duration maxDuration;
 
     /**
+     * Constructor.
+     * 
      * @param properties
      *            property accessor for poll configuration
      */
@@ -46,7 +48,6 @@ public class TenantConfigurationPollingDurationValidator implements TenantConfig
         final Duration tenantConfigurationValue;
         try {
             tenantConfigurationValue = durationHelper.formattedStringToDuration(tenantConfigurationString);
-
         } catch (final DateTimeParseException ex) {
             throw new TenantConfigurationValidatorException(
                     String.format("The given configuration value is expected as a string in the format %s.",