Add type ignore unreachable for get_autocommit in jdbc provider

[gopidesupavan]

related #53395

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[gopidesupavan]

after checking jaydebeapi there might be some drivers doesnt support the autocommit , so i think it make sense to keep that false , my bad closing this one ..

[jscheffl]

As for the future---- I still I would consider a PR makes sense to (1) add a type:ignore to suppress the warnign and (2) also add a comment why this is needed -for the future you/me that wants to fix the code.

Can you also tell me how the code is executed that the first return is not hit? Will then a driver raise an exception which is catched and then the second return is kicking-in?

[gopidesupavan]

As for the future---- I still I would consider a PR makes sense to (1) add a type:ignore to suppress the warnign and (2) also add a comment why this is needed -for the future you/me that wants to fix the code.

Can you also tell me how the code is executed that the first return is not hit? Will then a driver raise an exception which is catched and then the second return is kicking-in?

yeah will reopen this update type ignore.

we have this custom suppression logic with suppress_and_warn(jaydebeapi.Error, jpype.JException) its getting suppressed when error raises and then the false getting returned.

[gopidesupavan]

an example it simulates that behaviours

import traceback
import warnings
from contextlib import contextmanager


@contextmanager
def suppress_and_warn(*exceptions: type[BaseException]):
    try:
        yield
    except exceptions as e:
        warnings.warn(
            f"Exception suppressed: {e}\n{traceback.format_exc()}",
            category=UserWarning,
            stacklevel=3,
        )

def get_automcommit():
    raise Exception("get_automcommit is not implemented")

def check():

    with suppress_and_warn(Exception):
        return get_automcommit()
    return False
result = check()

if not result:
    print("Returned .", result)

[jscheffl]

Cool!