intermitently the build will hang in the setup target at the replace step:

        <!-- Replace string ${jdbcDatabase} in the file with value of database property -->
        <replace file="${build.dir}/labkey.xml">
            <replacefilter token="$${jdbcURLParameters}" value="${jdbcURLParameters}"/>
            <replacefilter token="$${jdbcDatabase}" value="${database}"/>
        </replace>

Does anybody know why this might happen?

Thanks,
Bill