Collect telemetry for Java properties

[NotMyFault]

The change proposed reinstantiates the telemetry data for basic Java system properties. I would like to collect some information about the JVM and OS versions used, especially in terms of Java 25 acceptance.

Testing done

None, relying on existing coverage and functionality.

Calling ExtensionList.lookupSingleton(jenkins.telemetry.impl.JavaSystemProperties).createContent() yields the expected result:

Result: {"file.encoding":"UTF-8","file.separator":"/","java.vm.name":"OpenJDK 64-Bit Server VM","java.vm.vendor":"Eclipse Adoptium","java.vm.version":"25+36-LTS","os.arch":"aarch64","os.name":"Mac OS X","os.version":"26.2","user.language":"en","components":{"ant":"520.vd082ecfb_16a_9","antisamy-markup-formatter":"173.v680e3a_b_69ff3","apache-httpcomponents-client-4-api":"4.5.14-269.vfa_2321039a_83","asm-api":"9.9.1-189.vb_5ef2964da_91","bootstrap5-api":"5.3.8-895.v4d0d8e47fea_d","bouncycastle-api":"2.30.1.82-277.v70ca_0b_877184","branch-api":"2.1268.v044a_87612da_8","build-timeout":"1.39","caffeine-api":"3.2.3-194.v31a_b_f7a_b_5a_81","checks-api":"373.vfe7645102093","cloudbees-folder":"6.1073.va_7888eb_dd514","commons-lang3-api":"3.20.0-109.ve43756e2d2b_4","commons-text-api":"1.15.0-210.v7480a_da_70b_9e","credentials":"1458.v7291f840651c","credentials-binding":"702.vfe613e537e88","dark-theme":"574.va_19f05d54df5","display-url-api":"2.217.va_6b_de84cc74b_","durable-task":"639.vefb_3d8372f6d","echarts-api":"6.0.0-1165.vd1283a_3e37d4","eddsa-api":"0.3.0.1-19.vc432d923e5ee","email-ext":"1933.v45cec755423f","font-awesome-api":"7.1.0-882.v1dfb_771e3278","git":"5.8.1","git-client":"6.5.0","github":"1.45.0","github-api":"1.330-492.v3941a_032db_2a_","github-branch-source":"1925.v62fb_7ffb_08ce","gradle":"2.18.1203.v2c96b_1243c72","gson-api":"2.13.2-173.va_a_092315913c","instance-identity":"203.v15e81a_1b_7a_38","ionicons-api":"94.vcc3065403257","jackson2-api":"2.20.1-423.v13951f6b_6532","jakarta-activation-api":"2.1.4-1","jakarta-mail-api":"2.1.5-1","jakarta-xml-bind-api":"4.0.6-12.vb_1833c1231d3","javax-activation-api":"1.2.0-8","jaxb":"2.3.9-143.v5979df3304e6","jenkins-core":"2.545-SNAPSHOT","jjwt-api":"0.11.5-120.v0268cf544b_89","joda-time-api":"2.14.0-149.v1c3ce991d1b_9","jquery3-api":"3.7.1-619.vdb_10e002501a_","json-api":"20251224-185.v0cc18490c62c","json-path-api":"2.10.0-202.va_9cc16c1e476","jsoup":"1.21.2-66.v6ea_38164b_8a_2","junit":"1380.v491ff054cd35","ldap":"793.v754d6b_41b_ea_4","mailer":"525.v2458b_d8a_1a_71","matrix-auth":"3.2.9","matrix-project":"870.v9db_fcfc2f45b_","metrics":"4.2.37-489.vb_6db_69b_ce753","mina-sshd-api-common":"2.16.0-167.va_269f38cc024","mina-sshd-api-core":"2.16.0-167.va_269f38cc024","okhttp-api":"4.12.0-195.vc02552c04ffd","pipeline-build-step":"571.v08a_fffd4b_0ce","pipeline-github-lib":"65.v203688e7727e","pipeline-graph-view":"730.v433816a_b_7a_73","pipeline-groovy-lib":"787.ve2fef0efdca_6","pipeline-input-step":"540.v14b_100d754dd","pipeline-milestone-step":"138.v78ca_76831a_43","pipeline-model-api":"2.2277.v00573e73ddf1","pipeline-model-definition":"2.2277.v00573e73ddf1","pipeline-model-extensions":"2.2277.v00573e73ddf1","pipeline-stage-step":"322.vecffa_99f371c","pipeline-stage-tags-metadata":"2.2277.v00573e73ddf1","plain-credentials":"199.v9f8e1f741799","plugin-util-api":"6.1192.v30fe6e2837ff","prism-api":"1.30.0-630.va_e19d17f83b_0","resource-disposer":"0.25","scm-api":"724.v7d839074eb_5c","script-security":"1385.v7d2d9ec4d909","snakeyaml-api":"2.5-143.v93b_c004f89de","ssh-credentials":"361.vb_f6760818e8c","ssh-slaves":"3.1085.vc64d040efa_85","structs":"362.va_b_695ef4fdf9","theme-manager":"327.v780d7096ec29","timestamper":"1.30","token-macro":"477.vd4f0dc3cb_cf1","trilead-api":"2.284.v1974ea_324382","variant":"70.va_d9f17f859e0","workflow-aggregator":"608.v67378e9d3db_1","workflow-api":"1398.v67030756d3fb_","workflow-basic-steps":"1098.v808b_fd7f8cf4","workflow-cps":"4238.va_6fb_65c1f699","workflow-durable-task-step":"1464.v2d3f5c68f84c","workflow-job":"1559.va_a_533730b_ea_d","workflow-multibranch":"821.vc3b_4ea_780798","workflow-scm-step":"466.va_d69e602552b_","workflow-step-api":"710.v3e456cc85233","workflow-
support":"1010.vb_b_39488a_9841","ws-cleanup":"0.49"}}

Screenshots (UI changes only)

Before

After

Proposed changelog entries

• Add telemetry for Java properties.

Proposed changelog category

/label

Proposed upgrade guidelines

N/A

Submitter checklist

• The issue, if it exists, is well-described.
• The changelog entries and upgrade guidelines are appropriate for the audience affected by the change (users or developers, depending on the change) and are in the imperative mood (see examples). Fill in the Proposed upgrade guidelines section only if there are breaking changes or changes that may require extra steps from users during upgrade.
• There is automated testing or an explanation as to why this change has no tests.
• New public classes, fields, and methods are annotated with @Restricted or have @since TODO Javadocs, as appropriate.
• New deprecations are annotated with @Deprecated(since = "TODO") or @Deprecated(forRemoval = true, since = "TODO"), if applicable.
• UI changes do not introduce regressions when enforcing the current default rules of Content Security Policy Plugin. In particular, new or substantially changed JavaScript is not defined inline and does not call eval to ease future introduction of Content Security Policy (CSP) directives (see documentation).
• For dependency updates, there are links to external changelogs and, if possible, full differentials.
• For new APIs and extension points, there is a link to at least one consumer.

Desired reviewers

@mention

Before the changes are marked as ready-for-merge:

Maintainer checklist

• There are at least two (2) approvals for the pull request and no outstanding requests for change.
• Conversations in the pull request are over, or it is explicit that a reviewer is not blocking the change.
• Changelog entries in the pull request title and/or Proposed changelog entries are accurate, human-readable, and in the imperative mood.
• Proper changelog labels are set so that the changelog can be generated automatically.
• If the change needs additional upgrade steps from users, the upgrade-guide-needed label is set and there is a Proposed upgrade guidelines section in the pull request title (see example).
• If it would make sense to backport the change to LTS, be a Bug or Improvement, and either the issue or pull request must be labeled as lts-candidate to be considered.

[daniel-beck]

Needs an issue with lts-candidate or it's not going into any LTS releases.

[NotMyFault]

Needs an issue with lts-candidate or it's not going into any LTS releases.

Was about to file that post-merge

[MarkEWaite]

This PR is now ready for merge. We will merge it after approximately 24 hours if there is no negative feedback.

/label ready-for-merge

[daniel-beck]

This PR still needs a changelog entry.