Non-static inner class causes Recursive Datastructure error

[GoogleCodeExporter]

The following class triggers a Recursive Datastructure error in EqualsVerifier:

public class Outer {
    private Inner inner;

    private class Inner {
        int i;
    }
}

This happens because Inner gets an implicit reference to Outer (because
Inner isn't static).

EqualsVerifier probably shouldn't think of this as a recursive
datastructure, even though technically it is.

Original issue reported on code.google.com by [email protected] on 15 Apr 2010 at 3:57

[GoogleCodeExporter]

The implicit reference that inner classes get to their enclosing outer classes, 
are
marked "synthetic" by the compiler. Since synthetic fields aren't supposed to 
be used
by programmers and can only be accessed by reflection, they can safely be 
ignored by
EqualsVerifier. Checking Field.isSynthetic() does the trick.

For more info, see
http://java.sun.com/docs/books/tutorial/reflect/member/fieldModifiers.html

Original comment by [email protected] on 15 May 2010 at 3:09

• Changed state: Fixed
• Added labels: ****
• Removed labels: ****