f43a450c addendum: during migration, if nothing else is being fingerprinted besides archived artifacts, then there is no reason to keep the separate fingerprint publisher at all.

Some loggers may show the thread name anyway, but /log/* in the UI at least does not.
And recent versions of Jenkins are being improved to capture lots of context in the thread name;
an unreleased improvement in Stapler includes the Jelly views being rendered.

For icons not defined in the IconSet

prevent build index page to redirect anonymous user to login just because some artifact share fingerprints with another job

For regular test failures this is normally just annoying noise.

@Nonnull annotation.

[FIXED JENKINS-23970] CLI authentication with username/password try to read my .ssh/id_rsa and prompts for key password

Integrated a bridge-method-injector that rebuilds the constant pool from
scratch.

For reasons TBD, sometimes CI tests fail with (1.565.x):
java.lang.InterruptedException: null
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:503)
	at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:267)
	at jenkins.InitReactorRunner.run(InitReactorRunner.java:44)
	at jenkins.model.Jenkins.executeReactor(Jenkins.java:915)
	at jenkins.model.Jenkins.<init>(Jenkins.java:814)
	at hudson.model.Hudson.<init>(Hudson.java:82)
	at org.jvnet.hudson.test.JenkinsRule.newHudson(JenkinsRule.java:539)
	at org.jvnet.hudson.test.JenkinsRule.before(JenkinsRule.java:331)
	at org.jvnet.hudson.test.JenkinsRule$2.evaluate(JenkinsRule.java:479)

Previously, basic auth header was processed from two different servlet
filters in a single filter chain.

In case the 1st filter (ApiTokenFilter) manages to authenticate the
request, the 2nd filter (BasicProcessingFilter) tries to avoid
interpreting the API token as the password and failing authentication
(see BasicProcessingFilter.authenticationIsRequired), but the check
feels rather fragile.

Although I did eventually discover that the original problem (ZD-19640)
was not caused by this, I've already implemented & tested this change,
and this feels like a good work to be wasted, so I'm pushing this in
anyway.

Refrence: ZD-19640

fixed broken HTML tables, added Jelly tag for help links

- Added migration logic to move the config files