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**Description**

Related to the discussion here: https://github.com/apache/airflow/pull/8553#discussion_r416136954

Allow user to define expected terminal state. e.g. `JOB_STATE_CANCELLED` could be not treated as failure but expected terminal state.


<!-- A short description of your feature -->


self,
        *,
        job_name: str = "{{task.task_id}}",
        append_job_name: bool = True,
        project_id: str | None = None,
        location: str | None = DEFAULT_DATAFLOW_LOCATION,
        gcp_conn_id: str = "google_cloud_default",
        poll_sleep: int = 10,
        impersonation_chain: str | Sequence[str] | None = None,
        drain_pipeline: bool = False,
        cancel_timeout: int | None = 5 * 60,
        wait_until_finished: bool | None = None,
        multiple_jobs: bool | None = None,
        check_if_running: CheckJobRunning = CheckJobRunning.WaitForRun,
        service_account: str | None = None,
    ) -> None:
        self.job_name = job_name
        self.append_job_name = append_job_name
        self.project_id = project_id
        self.location = location
        self.gcp_conn_id = gcp_conn_id
        self.poll_sleep = poll_sleep
        self.impersonation_chain = impersonation_chain
        self.drain_pipeline = drain_pipeline
        self.cancel_timeout = cancel_timeout
        self.wait_until_finished = wait_until_finished
        self.multiple_jobs = multiple_jobs
        self.check_if_running = check_if_running
        self.service_account = service_account
class DataflowCreateJavaJobOperator(GoogleCloudBaseOperator):