RE: [picocontainer-dev] Specify a zero arg constructor?

Hi Michael,

Michael Rimov wrote:
> Hi All,
> 
> I've got an issue with the following code:
> 
>         MutablePicoContainer pico = new DefaultPicoContainer();
>         pico.addComponent(ArrayList.class, ArrayList.class);
>         pico.addComponent(HashSet.class);
>         assertNotNull(pico.getComponent(ArrayList.class));  //Error!
> 
> The following claims a circular dependency exception...
> simple enough....
> because ArrayList can have a ArrayList(Collection) constructor.

Uhhh. This was solved in Pico 1.x! A component could not be used for a self-reference.

> Great.... now how can we specify the simple:  new ArrayList() no arg
> constructor? 
> 
> In the past, we could:
> 
>         pico.addComponent(ArrayList.class, ArrayList.class,
> new Parameter[0]{});
> 
> But that doesn't appear to be working. (I assume because of
> the variable arg
> constructors, it becomes impossible to tell if there was no parameter
> passed in, or an empty array)
> 
> Any thoughts?

It should be possible to define the arguments ... even if their number is 0

:-/

- Jörg

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