Description Lukas Eder 2021-02-09 04:04:42 EST

Here's a fun one. Look at this code:

// ----------------------------------
public enum Test {
    C(c -> "c");

    private Test(I i) {}

    @FunctionalInterface
    interface I {
        Object method(Object o);
    }
}
// ----------------------------------

When I put the caret on "->" and hit the F3 button, Eclipse navigates to the functional interface "I", as expected. Now add another enum to the compilation unit:

// ----------------------------------
public enum Test {
    C(c -> "c");

    private Test(I i) {}

    @FunctionalInterface
    interface I {
        Object method(Object o);
    }
}

enum E {
    A, B
}
// ----------------------------------

The navigation now stops working. Likewise, when I use the Ctrl button and hover over the "->", the set of navigation options no longer appears.