if (oldValue == null) {
      table.put(row, column, value);
    } else {
      V newValue = mergeFunction.apply(oldValue, value);
      if (newValue == null) {
        table.remove(row, column);
      } else {
        table.put(row, column, newValue);
      }
    }
  }

  private TableCollectors() {}

     * @return exit code of the destroyed process, or -1 if the process was not found
     */
    public int destroyProcess(final String sessionId) {
        final JobProcess jobProcess = runningProcessMap.remove(sessionId);
        return destroyProcess(sessionId, jobProcess);
    }

    /**
     * Checks if any processes are currently running.
     *

            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                // Remove comments
                final String replacedLine = line.replaceAll("#.*$", StringUtil.EMPTY).trim();

                // Skip empty lines or comment lines
                if (replacedLine.length() == 0) {

 * Observe the data just as it will be transmitted over the network.
 * Access to the `Connection` that carries the request.

### Rewriting Requests

Interceptors can add, remove, or replace request headers. They can also transform the body of those requests that have one. For example, you can use an application interceptor to add request body compression if you're connecting to a webserver known to support it.

            listener.cacheMiss(call)
          }
        }
      }

      if (HttpMethod.invalidatesCache(networkRequest.method)) {
        try {
          cache.remove(networkRequest)
        } catch (_: IOException) {
          // The cache cannot be written.
        }
      }
    }

    return response
  }

  /**

          if (exceptionClass.equals(knownGood.get())) {
            return;
          }
          // TODO(cpovirk): if reference has been cleared, remove it?
        }
        checkExceptionClassValidity(exceptionClass);

        /*
         * It's very unlikely that any loaded Futures class will see getChecked called with more

	testResults = append(testResults, setupTestReadDirGeneric(t)...)
	// Setup and capture test results for directory with files and symlink.
	testResults = append(testResults, setupTestReadDirSymlink(t)...)

	// Remove all dirs once tests are over.
	defer teardown(testResults)

	// Validate all the results.
	for _, r := range testResults {
		if entries, err := readDir(r.dir); err != nil {
			t.Fatal("failed to run test.", err)

			err = x.addVersion(ventry)
		}
		if x.SharedDataDirCount(ver.ObjectV2.VersionID, ver.ObjectV2.DataDir) > 0 {
			// Found that another version references the same dataDir
			// we shouldn't remove it, and only remove the version instead
			return "", nil
		}
		return uuid.UUID(ver.ObjectV2.DataDir).String(), err
	}

	if fi.Deleted {
		err = x.addVersion(ventry)
		return "", err
	}

            RequestOptionCall<IndexRequestBuilder> entityCall) {
        return doBatchDelete(new BulkList<>(list, call, entityCall), null);
    }

    // #pending create, modify, remove

            RequestOptionCall<IndexRequestBuilder> entityCall) {
        return doBatchDelete(new BulkList<>(list, call, entityCall), null);
    }

    // #pending create, modify, remove