Affects PMD Version:
6.21+
7.0.0

Rule: UnnecessaryImport

Description:
When an on-demand import is only used in a JavaDoc @link, @see or similar tag, the import is flagged.

This rule requires type-resolution to match the on-demand import, which isn't performed for JavaDoc content (I think...)

I already played around with this a little bit, but my solution seems like a hack, as I'm not sure, if the internal APIs were meant to be used that way and I feel that this might break easily if the code-resolution logic changes: kris-scheibe/pmd@3b19532

Do you guys have any ideas or comments?

Code Sample demonstrating the issue:

import java.util.*;

public class Foo {
    /**
     * {@link  ArrayList  arraylist}
     */
    public void test() {}
}

Running PMD through: Other