Currently, when closing a client via JPPFClient.close(), the connections to the server have their status set to FAILED to indicate that they are being closed and no further connection attempt should be made. This is semantically incorrect and misleading, especially when diagnosing issues, since FAILED appears in many places in the client logs.

We propose to add a CLOSED status to the enum defined in JPPFClientConnectionStatus, to properly reflect the state of connection closed by the user.