Remove Java 11 support (#1937)

* Test LTS with 2.462.3

* Switch default build version to 2.479

* Remove Java 11 support

Jenkins weekly stopped supporting Java 11 with 2.463
https://www.jenkins.io/changelog/2.463/

Jenkins LTS stops Java 11 support with 2.479.1 30 Oct 2024

No longer generates container images for:

* AlmaLinux
* Alpine JDK 11
* Debian JDK 11
* Debian slim JDK 11
* Red Hat Universal Base Image 8
* Windows Server Core LTSC 2019 JDK 11

Move -strip-java-debug-attributes into jlink command line

Conditional no longer needed for that argument

Best reviewed with white space differences suppressed.

Tested with `make build test` on two different machines.

Confirmed the list of generated container images does not include any
Java 11 container, does not include any UBI 8 container, and does not
include any AlmaLinux container.

* Simplify docker compose in Windows

* Use correct debug attribute strip on Windows

.ci/publish.sh

@@ -68,15 +68,9 @@ else
     LATEST_WEEKLY="false"
 fi
 
-# Build all images including Java 11 if the version match latest LTS version
-# TODO: remove when Java 11 is removed from LTS line
-# See https://github.com/jenkinsci/docker/issues/1890
-TARGET="linux"
-
 if [[ "${JENKINS_VERSION}" == "${latest_lts_version}" ]]
 then
     LATEST_LTS="true"
-    TARGET="linux-lts-with-jdk11"
 else
     LATEST_LTS="false"
 fi
@@ -90,7 +84,7 @@ fi
 
 JENKINS_SHA="$(curl --disable --fail --silent --show-error --location "https://repo.jenkins-ci.org/releases/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war.sha256")"
 COMMIT_SHA=$(git rev-parse HEAD)
-export COMMIT_SHA JENKINS_VERSION JENKINS_SHA LATEST_WEEKLY LATEST_LTS TARGET
+export COMMIT_SHA JENKINS_VERSION JENKINS_SHA LATEST_WEEKLY LATEST_LTS
 
 cat <<EOF
 Using the following settings:
@@ -100,7 +94,6 @@ Using the following settings:
 * COMMIT_SHA: ${COMMIT_SHA}
 * LATEST_WEEKLY: ${LATEST_WEEKLY}
 * LATEST_LTS: ${LATEST_LTS}
-* TARGET: ${TARGET}
 EOF
 
-docker buildx bake --file docker-bake.hcl "${build_opts[@]}" "${TARGET}"
+docker buildx bake --file docker-bake.hcl "${build_opts[@]}" linux

.github/workflows/sync-plugin-manager.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Check if update is available
         id: update
         run: |
-          CURRENT_VERSION=$(docker buildx bake -f docker-bake.hcl --print alpine_jdk11 | jq -r ".target.alpine_jdk11.args.PLUGIN_CLI_VERSION")
+          CURRENT_VERSION=$(docker buildx bake -f docker-bake.hcl --print alpine_jdk17 | jq -r ".target.alpine_jdk17.args.PLUGIN_CLI_VERSION")
           if [ "$CURRENT_VERSION" = "${{ steps.lts.outputs.next-version }}" ]; then
             echo "available=false" >> $GITHUB_OUTPUT
           else