[JENKINS-28062] Channel listener onClose propagated exceptions

[JENKINS-28058] Don't send a reference to Computer.class over remoting channels

Match the overriden method's actual varargs signature.

Change AsynchPeople column from last active to last commit activity.

Remove unnecessary null check.

[JENKINS-28013,JENKINS-28012] - Revert changes for JENKINS-10629

[FIXED JENKINS-28062] A Launcher.afterDisconnect() method that propagates an exception is a sign of a bad Launcher not a problem closing the channel.

- Logging added to help diagnose was actually causing Jenkins.class to be initialized on the remoting side

This reverts commit b6c7b83e.

This reverts commit 4ddeeb84.

Add @Deprecated annotations to things documented as @deprecated.

Advertise X-JNLP-Host-Name correctly

This allows TCP slave agent port to be reverse proxied.

This prevents a long running CLI process (such as CloudBees OPE
proccesses) to hang forever when the main thread fails.

Whereas if the process terminates cleanly, the wrapper (such as systemd)
can take corrective actions.

Signed-off-by: Kamran Mackey <kamranm1200@gmail.com>

Signed-off-by: Kamran Mackey <kamranm1200@gmail.com>

[JENKINS-27918] Downgrade warning from Stapler

http://errorprone.info/bugpattern/Overrides

Minor changes are always good.

Signed-off-by: Kamran Mackey <kamranm1200@gmail.com>

Signed-off-by: Kamran Mackey <kamranm1200@gmail.com>

JENKINS-27708, JENKINS-27871  Ensure that identification of blocked tasks is using the live state.

Replace 'Hudson' with 'Jenkins' in more docstrings.

Fix release note typo.