# Steps to reproduce

* Start `localstack` (version 0.10.3).
* Don't create any lambda functions.
* Run:

```sh
AWS_ACCESS_KEY_ID='a' AWS_SECRET_ACCESS_KEY='b' \
aws lambda invoke \
  --function-name 'my-func' \
  --qualifier='qual' \
  --endpoint http://localhost:4574 test.out
```

* Expected behaviour — a `ResourceNotFoundException` from `aws-cli`.
* Actual behaviour — `An error occurred (500) when calling the Invoke operation` message and a 500 response.

This bug only appears if a `qualifier` is included in the request.
main_file = new_tmp_file()
            save_file(main_file, zip_file_content)
    if is_jar_archive(zip_file_content):
        def execute(event, context):
            result, log_output = lambda_executors.EXECUTOR_LOCAL.execute_java_lambda(
                event, context, handler=handler, main_file=main_file)
            return result
        return execute, zip_file_content
    raise ClientError(error_response(
        'Unable to extract Java Lambda handler - file is not a valid zip/jar files', 400, error_type='ValidationError'))
def set_archive_code(code, lambda_name, zip_file_content=None):
    
    lambda_arn = func_arn(lambda_name)
    lambda_details = arn_to_lambda[lambda_arn]
    is_local_mount = code.get('S3Bucket') == BUCKET_MARKER_LOCAL
    
    LAMBDA_EXECUTOR.cleanup(lambda_arn)
    if is_local_mount:
        
        
        
        
        return code['S3Key']
    
    zip_file_content = zip_file_content or get_zip_bytes(code)
    
    code_sha_256 = base64.standard_b64encode(hashlib.sha256(zip_file_content).digest())
    lambda_details.get_version('$LATEST')['CodeSize'] = len(zip_file_content)
    lambda_details.get_version('$LATEST')['CodeSha256'] = code_sha_256.decode('utf-8')
    tmp_dir = '%s/zipfile.%s' % (config.TMP_FOLDER, short_uid())