Fix a problem where we couldn't use antcall anymore because of the manifest classpath property creation.
Fix a problem where we couldn't use antcall anymore because of
the manifest classpath property creation.

jitsi/jitsi-hammer,gardenia/jitsi-hammer,bhatvv/jitsi-hammer,gardenia/jitsi-hammer,jitsi/jitsi-hammer,bhatvv/jitsi-hammer