protected final Lookup protoLookup;

    @Nullable
    protected final Consumer<LookupContext> contextConsumer;

    public LookupInvoker(Lookup protoLookup, @Nullable Consumer<LookupContext> contextConsumer) {
        this.protoLookup = requireNonNull(protoLookup);
        this.contextConsumer = contextConsumer;
    }

    @Override
    public final int invoke(InvokerRequest invokerRequest) {

        streamErrorCode = ErrorCode.CANCEL
      } catch (e: IOException) {
        errorException = e
        connectionErrorCode = ErrorCode.PROTOCOL_ERROR
        streamErrorCode = ErrorCode.PROTOCOL_ERROR
      } finally {
        close(connectionErrorCode, streamErrorCode, errorException)
        reader.closeQuietly()
      }
    }

    @Throws(IOException::class)
    override fun data(
      inFinished: Boolean,

예를 들어, 다른 의존성이나 *경로 작업*의 중간에 데이터베이스 트랜잭션 "롤백"이 발생하거나 다른 오류가 발생한다면, 해당 예외를 의존성에서 받을 수 있습니다.

따라서, 의존성 내에서 `except SomeException`을 사용하여 특정 예외를 처리할 수 있습니다.

마찬가지로, `finally`를 사용하여 예외 발생 여부와 관계 없이 종료 단계까 실행되도록 할 수 있습니다.

{* ../../docs_src/dependencies/tutorial007.py hl[3,5] *}

## `yield`를 사용하는 하위 의존성

모든 크기와 형태의 하위 의존성과 하위 의존성의 "트리"도 가질 수 있으며, 이들 모두가 `yield`를 사용할 수 있습니다.

 * the standard collection operations {@link #add(Object)} or {@link #remove(Object)} are encouraged
 * to implement the related methods as well. Finally, two collection views are provided: {@link
 * #elementSet} contains the distinct elements of the multiset "with duplicates collapsed", and

      }
    }
  }

  // Use this carefully - it doesn't implement value semantics
  private static final class TemporaryPair<A extends @Nullable Object, B extends @Nullable Object> {
    @ParametricNullness final A a;
    @ParametricNullness final B b;

    TemporaryPair(@ParametricNullness A a, @ParametricNullness B b) {
      this.a = a;
      this.b = b;
    }
  }

  /**

      return Collections.emptyList();
    }
    return new IntArrayAsList(backingArray);
  }

  private static final class IntArrayAsList extends AbstractList<Integer>
      implements RandomAccess, Serializable {
    final int[] array;
    final int start;
    final int end;

    IntArrayAsList(int[] array) {
      this(array, 0, array.length);
    }

 * the standard collection operations {@link #add(Object)} or {@link #remove(Object)} are encouraged
 * to implement the related methods as well. Finally, two collection views are provided: {@link
 * #elementSet} contains the distinct elements of the multiset "with duplicates collapsed", and

     */
    public static class PluginUpgradeInfo {
        /** The Maven groupId of the plugin */
        final String groupId;

        /** The Maven artifactId of the plugin */
        final String artifactId;

        /** The minimum version required for Maven 4 compatibility */
        final String minVersion;

        /**
         * Creates a new plugin upgrade information holder.
         *

      }
    }
  }

  // Use this carefully - it doesn't implement value semantics
  private static final class TemporaryPair<A extends @Nullable Object, B extends @Nullable Object> {
    @ParametricNullness final A a;
    @ParametricNullness final B b;

    TemporaryPair(@ParametricNullness A a, @ParametricNullness B b) {
      this.a = a;
      this.b = b;
    }
  }

  /**

		// Check policy for parent user of service account.
		svcPolicies, err = sys.PolicyDBGet(parentUser, args.Groups...)
		if err != nil {
			iamLogIf(GlobalContext, err)
			return false
		}

		// Finally, if there is no parent policy, check if a policy claim is
		// present.
		if len(svcPolicies) == 0 {
			policySet, _ := policy.GetPoliciesFromClaims(args.Claims, iamPolicyClaimNameOpenID())