Jibx needs to create the empty element when the field value becomes null and the usage attribute is required

Hi,
Below is a piece of scrab of my binding xml.
<mapping class="com.proj.isw.valueobjects.SSPFirmSaleValue" abstract="true" type-name="account_address">
<value name="AddressLine1" field="blCntCN" usage="required"/>
<value name="AddressLine2" field="blCntTP"/>
<value name="UnitType" field="blCntEX" default=""/>
<value name="UnitValue" field="blCntFN" usage="optional" default=""/>
<value name="City" field="blCntFN" usage="optional" default=""/>
<value name="State" field="blCntEM" default=""/>
<value name="Zip" field="blCntFN" default=""/>
<value name="Country" constant="840"/>
<value style="attribute" name="geoCode" constant="89830983098"/>
<value style="attribute" name="skipValidation" constant="Y"/>
<value style="attribute" name="checkId" constant=""/>
<value style="attribute" name="statusCode" constant=""/>
<value style="attribute" name="statusCategory" constant=""/>
<value style="attribute" name="statusDescription" constant=""/>
</mapping>

When the field blCntCN value becomes null and usage="required", I expect jibx marshalling should create the empty tag <AddressLine1/>. But its not happening. When do the marshalling jibx missing out element completly.

<AccountAddress geoCode="89830983098" skipValidation="Y" checkId="" statusCode="" statusCategory="" statusDescription="">
<AddressLine2>APt 1100</AddressLine2>
<UnitValue>CTG</UnitValue>
<City>Irving</City>
<Zip>75038</Zip>
<Country>840</Country>
</AccountAddress>

Our requirement is, If any of the value becomes null and its a required field then we need to send the empty tag of that element. Is it a bug in Jibx 1.1.5? or do we have someother way to accomplish this. Your help would be help ful