Groovy metaClass fails when overriding method called in constructor?

Question

I just tried to write this simple code to test overriding methods using metaClass.

The code is here:

class Hello {

    public Hello()  
    {
              


        

Answer 1

The following works:

class Hello {
  Hello() {
    Foo()
  }
}

Hello.metaClass.Foo = {-> 
  println "new"
}

new Hello()

And so does the following:

class Hello {
  Hello() {
    invokeMethod('Foo', [] as Object[])
  }

  void Foo() { println "old" }
}

Hello.metaClass.Foo = {-> 
  println "new"
}

new Hello()

This one is interesting; the bar() call inside Foo() works, whilst the ones inside the constructor doesn't:

class Hello {
  Hello() {
    Foo()
    bar()
  }

  void Foo() { println "old foo"; bar() }
  void bar() { println "old bar" }
}

Hello.metaClass {
  Foo = {-> println "new foo" }
  bar = { println "new bar" }
}

new Hello()

It appears Groovy doesn't check metaclass' methods FIRST when on constructors. I think it is a bug, and i couldn't find any bug related to this. What about filling a JIRA?