fixing empty device enrollment body exception

components/mobile-plugins/android-plugin/org.wso2.carbon.device.mgt.mobile.android.api/src/main/java/org/wso2/carbon/mdm/services/android/common/ValidationInterceptor.java

@@ -16,7 +16,7 @@
  * under the License.
  */
 
-package org.wso2.carbon.mdm.services.android.exception;
+package org.wso2.carbon.mdm.services.android.common;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

components/mobile-plugins/android-plugin/org.wso2.carbon.device.mgt.mobile.android.api/src/main/java/org/wso2/carbon/mdm/services/android/services/impl/DeviceManagementServiceImpl.java

@@ -32,7 +32,7 @@ import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementExcept
 import org.wso2.carbon.mdm.services.android.bean.ErrorResponse;
 import org.wso2.carbon.mdm.services.android.bean.wrapper.AndroidApplication;
 import org.wso2.carbon.mdm.services.android.bean.wrapper.AndroidDevice;
-import org.wso2.carbon.mdm.services.android.exception.UnexpectedServerErrorException;
+import org.wso2.carbon.mdm.services.android.exception.*;
 import org.wso2.carbon.mdm.services.android.services.DeviceManagementService;
 import org.wso2.carbon.mdm.services.android.util.AndroidAPIUtils;
 import org.wso2.carbon.mdm.services.android.util.AndroidConstants;
@@ -192,6 +192,12 @@ public class DeviceManagementServiceImpl implements DeviceManagementService {
     @POST
     @Override
     public Response enrollDevice(@Valid AndroidDevice androidDevice) {
+        if (androidDevice == null) {
+            String errorMessage = "The payload of the android device enrollment is incorrect.";
+            log.error(errorMessage);
+            throw new org.wso2.carbon.mdm.services.android.exception.BadRequestException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(errorMessage).build());
+        }
         try {
             Device device = new Device();
             device.setType(DeviceManagementConstants.MobileDeviceTypes.MOBILE_DEVICE_TYPE_ANDROID);

components/mobile-plugins/android-plugin/org.wso2.carbon.device.mgt.mobile.android.api/src/main/webapp/WEB-INF/cxf-servlet.xml

@@ -44,7 +44,7 @@
     <bean id="swaggerWriter" class="io.swagger.jaxrs.listing.SwaggerSerializers" />
     <bean id="swaggerResource" class="io.swagger.jaxrs.listing.ApiListingResource" />
     <bean id="GlobalExceptionMapper" class="org.wso2.carbon.mdm.services.android.exception.GlobalThrowableMapper"/>
-    <bean id="ValidationInterceptor" class="org.wso2.carbon.mdm.services.android.exception.ValidationInterceptor"/>
+    <bean id="ValidationInterceptor" class="org.wso2.carbon.mdm.services.android.common.ValidationInterceptor"/>
 
     <bean id="swaggerConfig" class="io.swagger.jaxrs.config.BeanConfig">
         <property name="resourcePackage" value="org.wso2.carbon.mdm.services.android.services"/>