add an example of basic user user and group logic

[OyvindLGjesdal]

GitHub issue resolved #

Pull request Description:

Adds tests that shows that current configuration stanzas allows other authenticated users access to configured paths, for demonstration. Also adds a second test that tries the same using groups, which works.

How should the ini files look instead if examples and default (with commented example that has this behaviour) look?

Not for merging currently, but for demonstration.

The existing test access_userPassword already has a shiro where there are two users and paths are different, so the test can be changed there, by adding an assertion that expects user1 to not have ping access

https://github.com/apache/jena/blob/main/jena-fuseki2/jena-fuseki-main/testing/Shiro/shiro_userpassword.ini

# Licensed under the terms of http://www.apache.org/licenses/LICENSE-2.0

[main]
plainMatcher=org.apache.shiro.authc.credential.SimpleCredentialsMatcher

[users]
admin=pw

[roles]

[users]
admin=pw
user1=passwd1

[urls]
/$/ping = authcBasic,user[admin]
/ds = authcBasic,user[user1]
/**=anon

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• Tests are included.
• Documentation change and updates are provided for the Apache Jena website
• Commits have been squashed to remove intermediate development commit messages.
• Key commit messages start with the issue number (GH-xxxx)

By submitting this pull request, I acknowledge that I am making a contribution to the Apache Software Foundation under the terms and conditions of the Contributor's Agreement.

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See the Apache Jena "Contributing" guide.

[Aklakan]

Without the .ask(), this line becomes a no-op - so it doesn't look right.

[OyvindLGjesdal]

Thanks, fixed. Also noticed an additional error (that the test that I expected to fail passed, so I had messed up the expect value).

[OyvindLGjesdal]

Sorry for the messy I PR, I see that it is kind of verbose and a wip with commented sections, but thought it was usable as a demonstration for the docs update. I think at least it fails correctly now e.g

org.opentest4j.AssertionFailedError: user1 user should not be able to ping: 2026-03-16T07:41:38.190+00:00
 ==> 
Expected :false
Actual   :true
<Click to see difference>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:158)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:139)
	at org.junit.jupiter.api.AssertFalse.failNotFalse(AssertFalse.java:69)
	at org.junit.jupiter.api.AssertFalse.assertFalse(AssertFalse.java:41)
	at org.junit.jupiter.api.Assertions.assertFalse(Assertions.java:255)
	at org.apache.jena.fuseki.mod.shiro.TestModShiro.access_userPassword(TestModShiro.java:190)