feat: dont throw FileNotFound for Path endsWith assertions, add test

[ky0n]

Check List:

• Fixes #3840
• Unit tests : YES / NO / NA
• Javadoc with a code example (on API only) : YES / NO / NA
• PR meets the contributing guidelines

Following the contributing guidelines will make it easier for us to review and accept your PR.

this is a starting implementation for issue #3840 happy to receive any feedback. thank you! Implementation for startsWith still open

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Co-authored-by: Benjamin König <[email protected]>

[scordio]

@ky0n the two failed jobs are unrelated to your changes, you can ignore them.

[ky0n]

can you have a look please @scordio, thank you. I tried to be as close as possible to toRealPath-Method with toAbsolutePath().normalize(), while the later will still work without the file existing. I didn't change the toRealPath(Path) method.

[scordio]

This is finally merged! Thanks for your efforts, @bekoenig and @ky0n!