java为不同的EJB名称创建相同的无状态EJB bean类，而不复制EJB bean类

Question

下面是EJBJAR中的代码段。xml-ejb2.0

<session>
    <ejb-name>ATest</ejb-name>
    <home>home</home>
    <remote>remote</remote>
    <ejb-class>class</ejb-class>
    <session-type>Stateless</session-type>
    <transaction-type>Container</transaction-type>
    <env-entry>
    <env-entry-name>entityName</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>A</env-entry-value>
    </env-entry>
    </session>  
    <session>
    <ejb-name>BTest</ejb-name>
    <home>home</home>
    <remote>remote</remote>
    <ejb-class>class</ejb-class>
    <session-type>Stateless</session-type>
    <transaction-type>Container</transaction-type>
    <env-entry>
    <env-entry-name>entityName</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>B</env-entry-value>
    </env-entry>
    </session>

下面是EJBJAR中的代码段。xml-ejb3.0

<session id="Test">
        <ejb-name>Test</ejb-name>
        <mapped-name></mapped-name>
        <business-remote>remote</business-remote>
        <ejb-class>class</ejb-class>
        <session-type>Stateless</session-type>
        <transaction-type>Container</transaction-type>
        </session>

我正在使用注释从EJB2.0重写到EJB3.0，但无法复制xml。请帮忙