Remove unnecessary logs

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java

@@ -18,6 +18,7 @@
 
 package org.wso2.carbon.device.mgt.core.operation.mgt;
 
+import com.google.gson.Gson;
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -792,15 +793,16 @@ public class OperationManagerImpl implements OperationManager {
 
             if (dtoOperation != null) {
                 long currentTime = Calendar.getInstance().getTime().getTime();
-                log.info("Current timestamp:" + currentTime);
                 long updatedTime = Timestamp.valueOf(dtoOperation.getReceivedTimeStamp()).getTime();
-                log.info("Updated timestamp: " + updatedTime);
 
                 // check if notnow frequency is met and set next pending operation if not, otherwise let notnow
                 // operation to proceed
                 if ((currentTime - updatedTime) < notNowOperationFrequency) {
                     dtoOperation = operationDAO.getNextOperation(enrolmentInfo.getId(),
                             org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Status.PENDING);
+                } else {
+                    log.warn("Updated timestamp (" + updatedTime + ") of operation (" +
+                            new Gson().toJson(dtoOperation) + ") is ahead from current: " + currentTime);
                 }
             } else {
                 dtoOperation = operationDAO.getNextOperation(enrolmentInfo.getId(),