anttest.xml

<project name="Example" xmlns:jacoco="antlib:org.jacoco.ant">
    <taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
        <classpath>
            <fileset dir="jacoco/lib">
                <include name="*.jar"/>
            </fileset>
        </classpath>
    </taskdef>

    <target name="test">
        <jacoco:coverage>
            <junit fork="true" forkmode="once" printsummary="true">
                <classpath location="out/test/Calculator" />
                <classpath>
                    <fileset dir="lib">
                        <include name="*.jar"/>
                    </fileset>
                </classpath>
                <batchtest fork="yes">
                    <fileset dir="test">
                        <include name="**/*Test*.java" />
                    </fileset>
                </batchtest>
            </junit>
        </jacoco:coverage>
    </target>

    <taskdef name="testng" classname="org.testng.TestNGAntTask">
        <classpath location="lib/testng-6.7.jar" />
    </taskdef>

    <target name="testng">
        <jacoco:coverage>
            <testng>
                <classpath location="out/test/Calculator" />
                <classpath location="test" />
                <classpath>
                    <fileset dir="lib">
                        <include name="*.jar"/>
                    </fileset>
                </classpath>
                <classfileset dir="out/test/Calculator" includes="**/*TestNG.class" />
            </testng>
        </jacoco:coverage>
    </target>

</project>