How to call a constructor expecting an interface?

[andrewkincaid]

I have a class MyClass with a constructor of MyClass(HttpServletRequest fRequest, HttpServletResponse fResponse).

If I pass in a org.apache.catalina.connector.Request object, which implements HttpServletRequest, for fRequest, and I pass in a org.apache.catalina.connector.Response object, which implements HttpServletResponse, for fResponse, I get an error:

Javascript compiler exception: Java constructor for "MyClass" with arguments "org.apache.catalina.connector.Request,org.apache.catalina.connector.Response" not found.

How can I call this constructor expecting an interface with objects that implement that interface?

[p-bakker]

Don't know the answer, but I'd provide a running example/testcase that someone can easily run and debug.

If you provide that here, I can convert this discussion into an issue, cause it sounds to me something like this ought to work

[tonygermano]

Examples would be great. My best guess is this is a ClassLoader issue. Perhaps the MyClass constructor and the org.apache.catalina.connector objects have different versions of HttpServletRequest and HttpServletResponse loaded?