Junit empty reports while running soapui testsuites using ant - junit

Question

I am trying to run my testsuite using ant, for reporting I am using ant.
I did a lot of tries but unable to get the reports. My test suite is running properly, but my Junit report all values are 0.
My Build xml file
<?xml version="1.0"?>
<project basedir="." default="testreport" name="Automation">
<property name="results.dir" value="D:/airline.com/NDC_Automation/API/Results"/>
<property name="reports.dir" value="${results.dir}/Reports"/>
<property name="html.dir" value="${reports.dir}/html"/>
<property name="proj.dir" value="D:/airline.com/NDC_Automation/Project/ADC-NDC-SB8-soapui-project.xml"/>
<target name="testsuite1">
<exec dir="." executable="D:/SoapUI-5.2.1/bin/testrunner.bat">
<arg line="-r -j -a -f ${results.dir} -sDAC-3728 ${proj.dir}"/>
</exec>
</target>
<target name="testreport" depends="testsuite1">
<mkdir dir="${reports.dir}"/>
<junitreport todir="${reports.dir}">
<fileset dir="${results.dir}">
<include name="TEST-*.XML"/>
</fileset>
<report format="frames" todir="${html.dir}">
</report>
</junitreport>
</target>
</project>
I followed another post from stackoveflowTHIS POST and followed the steps mentioned in it as well. But still my junit report is empty.
My TESTS-TestSuites.XML
<?xml version="1.0" encoding="UTF-8" ?>
<testsuites />
Is my build file correct or have i missed any important tag ?