Major Description
It works with other classes, even Java (Integer for example):
trait Extra {
String extra() { "I'm an extra method" }
}
class Something {
String doSomething() { 'Something' }
}
def s = new Something() as Extra;
assert "I'm an extra method" == s.extra()
assert 'Something' == s.doSomething()
def i = new Integer(0) as Extra;
assert "I'm an extra method" == i.extra()
def conf = new ConfigSlurper().parse('some = 7')
// Uncomment it and you are receive error:
// def ss = conf as Extra
/*
java.lang.NoClassDefFoundError: Extra
at ConsoleScript24.run(ConsoleScript24:16)
Caused by: java.lang.ClassNotFoundException: Extra
... 1 more
*/