/** The underlying index update callback to delegate operations to. */
    protected IndexUpdateCallback indexUpdateCallback;

    /** Factory for creating crawler clients to handle different URL schemes. */
    protected CrawlerClientFactory crawlerClientFactory;

    /** List of URLs to be deleted, cached for batch processing. */
    protected List<String> deleteUrlList = new ArrayList<>(100);

        if (this.equivalence.equals(that.equivalence)) {
          /*
           * We'll accept that as sufficient "proof" that either equivalence should be able to
           * handle either reference, so it's safe to circumvent compile-time type checking.
           */
          @SuppressWarnings("unchecked")
          Equivalence<Object> equivalence = (Equivalence<Object>) this.equivalence;

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream out = new ObjectOutputStream(bos);

    out.writeObject(original);

    byte[] handle = toByteArray(baseWireHandle + handleOffset);
    byte[] ref = prepended(TC_REFERENCE, handle);
    bos.write(ref);

    return bos.toByteArray();
  }

  private static byte[] prepended(byte b, byte[] array) {
    byte[] out = new byte[array.length + 1];

        withLock {
          finished = this.finished
          flowControlError = remainingByteCount + readBuffer.size > maxByteCount
        }

        // If the peer sends more data than we can handle, discard it and close the connection.
        if (flowControlError) {
          source.skip(remainingByteCount)
          closeLater(ErrorCode.FLOW_CONTROL_ERROR)
          return
        }

 * corresponding entries will be dropped from the cache. If an error occurs while writing a cache
 * value, the edit will fail silently. Callers should handle other problems by catching
 * `IOException` and responding appropriately.
 *
 * @constructor Create a cache which will reside in [directory]. This cache is lazily initialized on

- kube-scheduler removed `AzureDiskLimits` ,`CinderLimits` `EBSLimits` and `GCEPDLimits` plugin. Given the corresponding CSI driver reports how many volumes a node can handle in NodeGetInfoResponse, the kubelet stores this limit in CSINode and the scheduler then knows the limit of the driver on the node. Removed plugins AzureDiskLimits, CinderLimits, EBSLimits and GCEPDLimits if you explicitly enabled them in the scheduler...

* Fixing heapster memory requirements. ([#26109](https://github.com/kubernetes/kubernetes/pull/26109), [@Q-Lee](https://github.com/Q-Lee))
* Handle federated service name lookups in kube-dns. ([#25727](https://github.com/kubernetes/kubernetes/pull/25727), [@madhusudancs](https://github.com/madhusudancs))

                    // Mock implementation
                }
            };
        } catch (Exception e) {
            // If ActionRuntime constructor fails, return null and handle in test methods
            return null;
        }
    }

        List<String> cmdList = new ArrayList<>();

        try {
            execJob.testAddFessCustomSystemProperties(cmdList, "[invalid(regex");
            fail("Should handle invalid regex");
        } catch (Exception e) {
            // Expected to throw pattern syntax exception
            assertTrue(e instanceof java.util.regex.PatternSyntaxException);
        }
    }

   */
  /*
   * By declaring <T> instead of <T extends @Nullable Object>, we declare this method as requiring a
   * stream whose elements are non-null. However, the method goes out of its way to still handle
   * nulls in the stream. This means that the method can safely be used with a stream that contains
   * nulls as long as the *last* element is *not* null.
   *