build.xml

<project name="bgfinancas" basedir="." default="main">

    <property name="dir.src" value="src"/>
    <property name="dir.build" value="build"/>
    <property name="dir.lib" value="lib"/>
    <property name="dir.jar" value="jar"/>

    <path id="classpath">
        <fileset dir="${dir.lib}" includes="**/*.jar"/>
    </path>

    <target name="clean">
        <delete dir="${dir.build}"/>
        <delete dir="${dir.jar}"/>
    </target>

    <target name="compile" depends="clean">
        <mkdir dir="${dir.build}"/>
        <javac target="1.8" source="1.8" srcdir="${dir.src}" destdir="${dir.build}" classpathref="classpath" includeantruntime="true"/>
	<copy todir="${dir.build}">
            <fileset dir="${dir.src}" excludes="**/*.java"/>
        </copy>
    </target>

    <target name="jar">
        <mkdir dir="${dir.jar}"/>
	<copy todir="${dir.jar}/lib">
            <fileset dir="${dir.lib}"/>
        </copy>
        <jar destfile="${dir.jar}/bgfinancas.jar" basedir="${dir.build}">
            <manifest>
                <attribute name="Main-Class" value="io.github.badernageral.bgfinancas.principal.Main"/>
                <attribute name="Class-Path" value="lib/hsqldb-2.4.0.jar"/>
	    </manifest>
        </jar>
    </target>

    <target name="run">
        <java fork="true" classname="io.github.badernageral.bgfinancas.principal.Main">
            <classpath>
                <path refid="classpath"/>
                <path location="${dir.jar}/bgfinancas.jar"/>
            </classpath>
        </java>
    </target>

    <target name="main" depends="compile,jar"/>

</project>