addClassPathes(classLoader);
final GroovyShell groovy = new GroovyShell(classLoader, new Binding(), configuration);
try {
final Script script = groovy.parse(txt, scriptName);
script.setProperty("ant", new AntBuilder(this));
script.setProperty("project", project);
script.setProperty("properties", new AntProjectPropertiesDelegate(project));
script.setProperty("target", getOwningTarget());
script.setProperty("task", this);
script.setProperty("args", cmdline.getCommandline());