<!--
        <if>
            <not>
                <or>
                    <!-- <isset property="jdk.home" /> -->
                    <isset property="ossim.home" />
                    <isset property="ossim-jni.home" />
                </or>
            </not>
            <then>
                <antcall target="missing-required-properties" />
            </then>
        </if>        
-->
