Fixing https://github.com/wso2/product-iots/issues/1374.

components/device-mgt/org.wso2.carbon.device.mgt.api/src/main/java/org/wso2/carbon/device/mgt/jaxrs/util/Constants.java

@@ -30,7 +30,7 @@ public class Constants {
     public static final String DEFAULT_STREAM_VERSION = "1.0.0";
 	public static final String SCOPE = "scope";
 	public static final String JDBC_USERSTOREMANAGER = "org.wso2.carbon.user.core.jdbc.JDBCUserStoreManager";
-	public static final int DEFAULT_PAGE_LIMIT = 10;
+	public static final int DEFAULT_PAGE_LIMIT = 50;
 
 
 	public final class ErrorMessages {

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementProviderServiceImpl.java

@@ -1720,15 +1720,12 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         if (log.isDebugEnabled()) {
             log.debug("Get devices by name " + request.toString() + " and requiredDeviceInfo: " + requireDeviceInfo);
         }
-        List<Device> devices = new ArrayList<>();
         List<Device> allDevices;
         int limit = DeviceManagerUtil.validateDeviceListPageSize(request.getRowCount());
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevicesByNameAndType(request.getDeviceName(), request.getDeviceType(),
                     this.getTenantId(), request.getStartIndex(), limit);
-            List<Device> filterd = null;
-            filterd.get(0);
         } catch (DeviceManagementDAOException e) {
             String msg = "Error occurred while fetching the list of devices that matches to '"
                     + request.getDeviceName() + "'";