JAR_to_EXE.xml

<?xml version="1.0"?>
<project name="GameRoom.exe">
    <target name="Pack for Release">
        <loadfile property="implementation.version" srcFile="src/META-INF/MANIFEST.MF">
            <filterchain>
                <!-- following filter tokenize input file and return only
                     the lines that match the pattern. Matched string is
                     replaced by an empty string to get only the value of the
                     manifest property.
                -->
                <tokenfilter>
                    <containsregex pattern="Implementation-Version:[ \t]*" replace="" flags="i"/>
                </tokenfilter>
            </filterchain>
        </loadfile>

        <exec executable="D:/Google Drive/Projects/GameRoom/production/build_for_release.bat"
              dir="D:/Google Drive/Projects/GameRoom/production/">
            <arg value="${implementation.version}"/>
        </exec>
        <echo>Done!</echo>
    </target>
</project>