check Duration

src/main/java/com/steerinfo/dil/service/impl/AmstruckInwardRequirementServiceImpl.java

@@ -100,7 +100,7 @@ public class AmstruckInwardRequirementServiceImpl extends BaseServiceImpl<Amstru
         amstruckInwardRequirement.setRequirementWorkContent(requirementWorkContent);
         amstruckInwardRequirement.setRequirementWorkEnvironment(requirementWorkEnvironment);
 
-        if (requirementEstimatedDuration!=null) {
+        if (requirementEstimatedDuration!=null && !requirementEstimatedDuration.equals("")) {
 
             amstruckInwardRequirement.setRequirementEstimatedDuration(new BigDecimal(requirementEstimatedDuration));
         }