StartsWith and EndsWith conditions

Help
mk
2010-03-24
2013-04-24
  •  mk
    mk
    2010-03-24

    Hello,
    I'm using ang-contrib-1.0b3. The documentation describes how to use startswith and endswith conditions. Unfortunately the destribution contains neither StartsWith.class nor Endswith.class in the package net.sf.antcontrib.logic.condition.
    How can I use the conditions?
    Thanks in advance.