<property name="tomcat.home" value="C:/Softwares/Program Files/apache-tomcat-7.0.27/" />

<target name="tomcat-start">
    <java classname="org.apache.catalina.startup.Bootstrap" fork="true">
    	<classpath path="${tomcat.home}/bin/bootstrap.jar:${tomcat.home}/bin/tomcat-juli.jar" />
        <jvmarg value="-Dcatalina.home=${tomcat.home}"/>
    </java>
</target>

<target name="tomcat-stop">
    <java classname="org.apache.catalina.startup.Bootstrap" fork="true">
    <classpath path="${tomcat.home}/bin/bootstrap.jar:${tomcat.home}/bin/tomcat-juli.jar" />
        <jvmarg value="-Dcatalina.home=${tomcat.home}"/>
        <arg line="stop"/>
    </java>
</target>

error:

• java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory

Solution:

• Download :tomcat-juli.jar and place it in Tomcat lib folder

http://www.java2s.com/Code/Jar/t/Downloadtomcatjulijar.htm