Ant - compile task and source directory setup

[Bruce Nguyen]

Hi All,
I am creating my project directory structure. So here it is:
myproject
-src
- com
- packagename
- ClassName.java

And here is my build.xml:

<project basedir="." default="all" name="myproject">

<target name="init">
<property location="classes" name="classes.dir"/>
<property location="src" name="src.dir"/>
</target>

<target depends="init" name="compile">
<mkdir dir="${classes.dir}"/>
<javac debug="true" deprecation="true" destdir="${classes.dir}" srcdir="${src.dir}">
</javac>
</target>

<target depends="init" name="clean">
<delete dir="${classes.dir}"/>
</target>

<target depends="init, compile" name="all"/>

</project>

What happened after I ran the compile task was that Ant created the classes structure as follow:

myproject
-classes
-src
- com
- packagename
- ClassName.class

I don't understand why the src directory was created under the classes directory?
It would be appreciated if someone could provide me the explanation of the above problem.
Thanks,
Bruce