build impl

<target depends="init,compile,-pre-pre-jar,-pre-jar" if="do.archive+manifest.available" name="-do-ja$
        <j2seproject1:jar manifest="${manifest.file}"/>
    </target>
    <target depends="init,compile,-pre-pre-jar,-pre-jar" if="do.archive+manifest.available+main.class" n$
        <j2seproject1:jar manifest="${manifest.file}">
            <j2seproject1:manifest>
                <j2seproject1:attribute name="Main-Class" value="${main.class}"/>
            </j2seproject1:manifest>
        </j2seproject1:jar>
        <echo level="info">To run this application from the command line without Ant, try:</echo>
        <property location="${build.classes.dir}" name="build.classes.dir.resolved"/>
        <property location="${dist.jar}" name="dist.jar.resolved"/>
        <pathconvert property="run.classpath.with.dist.jar">
            <path path="${run.classpath}"/>
            <map from="${build.classes.dir.resolved}" to="${dist.jar.resolved}"/>
        </pathconvert>
        <echo level="info">java -cp "${run.classpath.with.dist.jar}" ${main.class}</echo>
    </target>
    <target depends="init" if="do.archive" name="-do-jar-with-libraries-create-manifest" unless="manifes$
        <tempfile deleteonexit="true" destdir="${build.dir}" property="tmp.manifest.file"/>
        <touch file="${tmp.manifest.file}" verbose="false"/>
    </target>
    <target depends="init" if="do.archive+manifest.available" name="-do-jar-with-libraries-copy-manifest$
        <tempfile deleteonexit="true" destdir="${build.dir}" property="tmp.manifest.file"/>
        <copy file="${manifest.file}" tofile="${tmp.manifest.file}"/>
    </target>
    <target depends="init,-do-jar-with-libraries-create-manifest,-do-jar-with-libraries-copy-manifest" i$
        <manifest file="${tmp.manifest.file}" mode="update">
            <attribute name="Main-Class" value="${main.class}"/>
        </manifest>
    </target>