From 9db742e95a735329e18127ef5e0646aee4da1897 Mon Sep 17 00:00:00 2001
From: sameera910409 <sameera910409@gmail.com>
Date: Tue, 18 Jul 2017 00:15:31 +0530
Subject: [PATCH] fixing https://github.com/wso2/product-iots/issues/1136 :
 DeviceDetailsRetrieverTask attempts to add operations to a device that has
 been removed

---
 .../carbon/device/mgt/core/task/impl/DeviceTaskManagerImpl.java | 2 +-
 .../org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/task/impl/DeviceTaskManagerImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/task/impl/DeviceTaskManagerImpl.java
index ebcd3d5886..41d291e74e 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/task/impl/DeviceTaskManagerImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/task/impl/DeviceTaskManagerImpl.java
@@ -92,7 +92,7 @@ public class DeviceTaskManagerImpl implements DeviceTaskManager {
             operations = this.getValidOperationNames(); //list operations for each device type
             devices = deviceManagementProviderService.getAllDevices(deviceType, false);//list devices for each type
             if (!devices.isEmpty()) {
-                if (operations != null) {
+                if (operations != null && DeviceManagerUtil.getValidDeviceIdentifiers(devices).size() != 0) {
                     for (String str : operations) {
                         CommandOperation operation = new CommandOperation();
                         operation.setEnabled(true);
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java
index 339567fc3c..50582799ce 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java
@@ -247,6 +247,7 @@ public final class DeviceManagerUtil {
                 switch (device.getEnrolmentInfo().getStatus()) {
                     case BLOCKED:
                     case REMOVED:
+                        break;
                     case SUSPENDED:
                         break;
                     default: