Sonar Fixes (9) (#2221)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-ddi/hawkbit-ddi-resource/src/test/java/org/eclipse/hawkbit/ddi/rest/resource/DdiConfirmationBaseTest.java

@@ -341,7 +341,7 @@ class DdiConfirmationBaseTest extends AbstractDDiApiIntegrationTest {
         final DdiActivateAutoConfirmation body = new DdiActivateAutoConfirmation(initiator, remark);
 
         mvc.perform(post(ACTIVATE_AUTO_CONFIRM, tenantAware.getCurrentTenant(), controllerId)
-                        .content(getMapper().writeValueAsString(body)).contentType(MediaType.APPLICATION_JSON_UTF8))
+                        .content(getMapper().writeValueAsString(body)).contentType(MediaType.APPLICATION_JSON))
                 .andDo(MockMvcResultPrinter.print())
                 .andExpect(status().isOk());
 

hawkbit-ddi/hawkbit-ddi-resource/src/test/java/org/eclipse/hawkbit/ddi/rest/resource/DdiInstalledBaseTest.java

@@ -626,6 +626,7 @@ public class DdiInstalledBaseTest extends AbstractDDiApiIntegrationTest {
                 .andExpect(status().isNotAcceptable());
     }
 
+    @SuppressWarnings("java:S1144") // java:S1144 - used in MethodSource, sonar my find it incorrectly as unused
     private static Stream<Action.ActionType> actionTypeForDeployment() {
         return Stream.of(Action.ActionType.SOFT, Action.ActionType.FORCED);
     }