private int getDceReferent(final Object obj) {
        Entry e;

        if (referents == null) {
            referents = new HashMap();
            referent = 1;
        }

        e = (Entry) referents.get(obj);
        if (e == null) {
            e = new Entry();
            e.referent = referent++;
            e.obj = obj;
            referents.put(obj, e);
        }

        return e.referent;
    }

): T? {
  var c: Class<*> = instance.javaClass
  while (c != Any::class.java) {
    try {
      val field = c.getDeclaredField(fieldName)
      field.isAccessible = true
      val value = field.get(instance)
      return if (!fieldType.isInstance(value)) null else fieldType.cast(value)
    } catch (_: NoSuchFieldException) {
    }

    c = c.superclass
  }

    <exportedPackage>javax.inject.*</exportedPackage>
    <!-- javax.enterprise.inject (JSR-299): Must never be exported if needed at plugin level, plugin adds it
         there is no justification to get it at Maven level and leaking it will conflict.
    <exportedPackage>javax.enterprise.util.*</exportedPackage>
    <exportedPackage>javax.enterprise.inject.*</exportedPackage>
    -->

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

이제 **FastAPI** 앱이 있는 `main.py` 파일에 몇 가지 다른 **경로 작업** 이 추가된 경우를 생각해봅시다.

단일 오류를 반환할 수 있는 `GET` 작업이 있습니다.

여러 다른 오류를 반환할 수 있는 `POST` 작업이 있습니다.

두 *경로 작업* 모두 `X-Token` 헤더를 요구합니다.

//// tab | Python 3.10+

```Python
{!> ../../docs_src/app_testing/app_b_an_py310/main.py!}
```

////

    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      // if waiting works, this should get stuck
      Queues.drain(q, new ArrayList<>(), 1, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {
      // we indeed waited; a slow thread had enough time to interrupt us
    }
  }

Windows version of the kubelet.exe calls `GetPhysicallyInstalledSystemMemory` to get the physical memory installed on Windows machines and reports it as part of node metrics to heapster. This API call fails for VMware and VirtualBox virtualization environments. This issue is not present in bare metal Windows deployments, in Hyper-V, or on some of the popular public cloud providers.

*   If you run `kubectl get po` while the API server in unreachable, a misleading error is returned: `the...

                if (LogStream.level >= 6) {
                    Hexdump.hexdump(log, BUF, 4, n);
                }
            }
            /* For some reason this can sometimes get broken up into another
             * "NBSS Continuation Message" frame according to WireShark
             */
            out.write(BUF, 0, 4 + n);
        }
    }

    /**

When building web APIs with FastAPI, if there's an error in our code, FastAPI will normally contain it to the single request that triggered the error. 🛡

The client will get a **500 Internal Server Error** for that request, but the application will continue working for the next requests instead of just crashing completely.

### Bigger Errors - Crashes { #bigger-errors-crashes }

* API作成のための<a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>。これは、<abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>の宣言、パラメータ、ボディリクエスト、セキュリティなどを含んでいます。
* <a href="http://json-schema.org/" class="external-link" target="_blank"><strong>JSONスキーマ</strong></a>を使用したデータモデルのドキュメント自動生成（OpenAPIはJSONスキーマに基づいている）。

		if !generatesZip64(t, gen(0xffff)) {
			t.Error("expected zip64")
		}
	})
}

// suffixSaver is an io.Writer & io.ReaderAt that remembers the last 0
// to 'keep' bytes of data written to it. Call Suffix to get the
// suffix bytes.
type suffixSaver struct {
	keep  int
	buf   []byte
	start int
	size  int64
}

func (ss *suffixSaver) Size() int64 { return ss.size }