License false positive

These are some license detection issues found in beanshell old versions https://repo1.maven.org/maven2/org/beanshell/bsh/2.0b5/ and https://codeload.github.com/beanshell/beanshell/zip/refs/tags/2.0b5 :

- `error("classpath exception in name`
- `currently using the GPL 'htmldoc'`
- `Added SPL Sun Public License agreement with dual licensing under the LGPL`
- `previously licensed under the terms of the GNU Lesser General Public License (the LGPL) and the Sun Public License (SPL).`

This is a public domain:
- `This file is hereby placed into the public domain... You may copy, modify, and redistribute it without restriction.`

Some other-permissive in the docs:

> License and Terms of Use
>
> You may freely use and reproduce this document in its entirety as long as
> you preserve this license information and a pointer to the original
> web site: You may integrate parts of this document
> into your own documentation as long as you provide this same information
> at an appropriate place in your document.
>
> This document is copyright . Sections contributed by
> other authors are copyrighted to those individuals and subject to the
> terms of use described above
>