Map<String, Object> result = null;
if (UtilValidate.isNotEmpty(amount)) {
returnAdjustment.setNonPKFields(context);
returnAdjustment.set("amount", amount);
delegator.store(returnAdjustment);
Debug.logInfo("Update ReturnAdjustment with Id:" + context.get("returnAdjustmentId") + " to amount " + amount +" successfully.", module);
result = ServiceUtil.returnSuccess(UtilProperties.getMessage(resource, "OrderUpdateReturnAdjustment", UtilMisc.toMap("returnAdjustmentId", context.get("returnAdjustmentId"), "amount", amount), locale));
} else {
result = ServiceUtil.returnSuccess();
}