I think need to use the static getInstance method on javax.mail.Session.
<gel:script
xmlns:core="jelly:core"
xmlns:util="jelly:util"
xmlns:x="jelly:xml"
xmlns:sql="jelly:sql"
xmlns:gel="jelly:com.niku.union.gel.GELTagLibrary"
xmlns:soap="jelly:com.niku.union.gel.SOAPTagLibrary"
>
<!-- create Properties class -->
<core:new className="java.util.Properties" var="propertiesClass"/>
<core:invoke method="put" on="${propertiesClass}">
<core:arg type="java.lang.Object" value="mail.smtp.host"/>
<core:arg type="java.lang.Object" value="smtp.gmail.com"/>
</core:invoke>
<core:invoke method="put" on="${propertiesClass}">
<core:arg type="java.lang.Object" value="mail.smtp.port"/>
<core:arg type="java.lang.Object" value="587"/>
</core:invoke>
<!-- Create session Class -->
<!--
Replace this with the invokeStatic
<core:new className="javax.mail.Session" var="sessionClass"/>
-->
<core:invokeStatic var="sessionClass" className="javax.mail.Session" method="getInstance">
<core:arg type="java.util.Properties" value="${propertiesClass}"/>
</core:invokeStatic>
</gel:script>
V/r,
Gene