Adding missed error throwing

components/device-mgt/org.wso2.carbon.device.mgt.api/src/main/java/org/wso2/carbon/device/mgt/jaxrs/service/impl/util/RequestValidationUtil.java

@@ -316,14 +316,26 @@ public class RequestValidationUtil {
                     log.error("No policy validator found for device type  " + deviceType);
             }
         } catch (InstantiationException e) {
-            log.error("Error when creating an instance of validator related to deviceType " +
-                    deviceType);
+            String msg = "Error when creating an instance of validator related to deviceType " +
+                    deviceType;
+            log.error(msg);
+            throw new InputValidationException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(msg).build
+                            ());
         } catch (IllegalAccessException e) {
-            log.error("Error when accessing an instance of validator related to deviceType " +
-                    deviceType);
+            String msg = "Error when accessing an instance of validator related to deviceType " +
+                    deviceType;
+            log.error(msg);
+            throw new InputValidationException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(msg).build
+                            ());
         } catch (ClassNotFoundException e) {
-            log.error("Error when loading an instance of validator related to deviceType " +
-                    deviceType);
+            String msg ="Error when loading an instance of validator related to deviceType " +
+                    deviceType;
+            log.error(msg);
+            throw new InputValidationException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(msg).build
+                            ());
         }
         return null;
     }

components/policy-mgt/org.wso2.carbon.policy.mgt.common/src/main/java/org/wso2/carbon/policy/mgt/common/PolicyPayloadValidator.java

@@ -1,3 +1,21 @@
+/*
+ * Copyright (c) 2020, Entgra (Pvt) Ltd. (http://entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
 package org.wso2.carbon.policy.mgt.common;
 
 import java.util.List;

components/policy-mgt/org.wso2.carbon.policy.mgt.common/src/main/java/org/wso2/carbon/policy/mgt/common/ProfileFeature.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ * Copyright (c) 2020, Entgra (Pvt) Ltd. (http://entgra.io) All Rights Reserved.
  *
- * WSO2 Inc. licenses this file to you under the Apache License,
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
  * Version 2.0 (the "License"); you may not use this file except
  * in compliance with the License.
  * You may obtain a copy of the License at
@@ -14,6 +14,7 @@
  * KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations
  * under the License.
+ *
  */
 
 package org.wso2.carbon.policy.mgt.common;