connectionListener.connectionClosed(connection)
      }
    }

    if (connections.isEmpty()) cleanupQueue.cancelAll()
  }

  /**
   * Performs maintenance on this pool, evicting the connection that has been idle the longest if
   * either it has exceeded the keep alive limit or the idle connections limit.
   *
   * Returns the duration in nanoseconds to sleep until the next scheduled call to this method.

    // maximumSize/Weight is specified in which case ensure that each segment gets at least 10
    // entries. The special casing for size-based eviction is only necessary because that eviction
    // happens per segment instead of globally, so too many segments compared to the maximum size
    // will result in random eviction behavior.
    int segmentShift = 0;
    int segmentCount = 1;
    while (segmentCount < concurrencyLevel

    // maximumSize/Weight is specified in which case ensure that each segment gets at least 10
    // entries. The special casing for size-based eviction is only necessary because that eviction
    // happens per segment instead of globally, so too many segments compared to the maximum size
    // will result in random eviction behavior.
    int segmentShift = 0;
    int segmentCount = 1;
    while (segmentCount < concurrencyLevel

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing duplicate host configuration.
     *
     * @param form the edit form containing the duplicate host ID
     * @return HTML response for the duplicate host edit form
     */
    @Execute
    @Secured({ ROLE })

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing path mapping.
     *
     * @param form the edit form containing the path mapping ID and data
     * @return HTML response for the path mapping edit form
     */
    @Execute
    @Secured({ ROLE })

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing related content item.
     *
     * @param form the edit form containing the ID of the item to edit
     * @return HTML response for the edit form
     */
    @Execute
    @Secured({ ROLE })

                form.crudMode = CrudMode.CREATE;
            });
        }).renderWith(data -> {
            registerLabels(data);
        });
    }

    /**
     * Shows the form for editing an existing elevate word.
     *
     * @param form edit form containing the elevate word ID
     * @return HTML response for the edit elevate word form
     */
    @Execute
    @Secured({ ROLE })

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing related query item.
     *
     * @param form the edit form containing the ID of the item to edit
     * @return HTML response for the edit form
     */
    @Execute
    @Secured({ ROLE })

                });
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing web crawler configuration.
     *
     * @param form the edit form containing web config ID
     * @return HTML response for the web config edit form
     */
    @Execute
    @Secured({ ROLE })

                form.crudMode = CrudMode.CREATE;
            });
        }).renderWith(data -> {
            registerWebConfigItems(data);
        });
    }

    /**
     * Displays the form for editing an existing request header item.
     *
     * @param form the edit form containing the ID of the item to edit
     * @return HTML response for the edit form
     */
    @Execute
    @Secured({ ROLE })