Classpath issue with task

[query]

  
Hi,

I have been using ANT tool to compile java source files.

<javac srcdir="${src}" destdir="${dst}" includeAntRuntime="no" 
includes="**/*.java">
   <classpath refid="app.path"/>
</javac>

In the log file, it is displaying the destination folder also in the classpath 
though I have not defined it in classpath.
Is it <javac> task bug?

Log file:

[javac] Using modern compiler
    [javac] Compilation arguments:
    [javac] '-d'
    [javac] 'E:\ANTBUILD\eg\tempclass'
    [javac] '-classpath'
    [javac] 
'E:\ANTBUILD\eg\tempclass';C:\PROGRA~1\jdk1.5.0;E:\ANTBUILD\eg\eg1.jar
    [javac] '-sourcepath'
    [javac] 'E:\ANTBUILD\eg\tempsource'
    [javac] '-g:none'
    [javac] 
    [javac] The ' characters around the executable and arguments are
    [javac] not part of the command.