adding debug logs to GlobalThrowableMapper

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

@@ -51,7 +51,7 @@ public class GlobalThrowableMapper implements ExceptionMapper {
         if (e instanceof JsonParseException) {
             String errorMessage = "Malformed request body.";
             if (log.isDebugEnabled()) {
-                log.error(errorMessage, e);
+                log.debug(errorMessage, e);
             }
             return AndroidDeviceUtils.buildBadRequestException(errorMessage).getResponse();
         }
@@ -63,13 +63,16 @@ public class GlobalThrowableMapper implements ExceptionMapper {
         }
         if (e instanceof UnexpectedServerErrorException) {
             if (log.isDebugEnabled()) {
-                log.error("Unexpected server error", e);
+                log.debug("Unexpected server error", e);
             }
             return ((UnexpectedServerErrorException) e).getResponse();
         }
         if (e instanceof ConstraintViolationException) {
+            if (log.isDebugEnabled()) {
+                log.debug("Constraint violation issue.", e);
                 return ((ParameterValidationException) e).getResponse();
             }
+        }
         if (e instanceof IllegalArgumentException) {
             ErrorDTO errorDetail = new ErrorDTO();
             errorDetail.setCode((long) 400);
@@ -83,7 +86,7 @@ public class GlobalThrowableMapper implements ExceptionMapper {
         }
         if (e instanceof ClientErrorException) {
             if (log.isDebugEnabled()) {
-                log.error("Client error", e);
+                log.debug("Client error", e);
             }
             return ((ClientErrorException) e).getResponse();
         }
@@ -100,7 +103,7 @@ public class GlobalThrowableMapper implements ExceptionMapper {
         }
         if (e instanceof ForbiddenException) {
             if (log.isDebugEnabled()) {
-                log.error("Resource forbidden", e);
+                log.debug("Resource forbidden", e);
             }
             return ((ForbiddenException) e).getResponse();
         }