java-1.8.0-openjdk security update

[1:1.8.0.412.b08-1]

• Update to shenandoah-jdk8u412-b08 (GA)
• Update release notes for shenandoah-8u412-b08.
• Complete release note for Certainly roots
• Switch to GA mode.
• This tarball is embargoed until 2024-04-16 @ 1pm PT.
• Related: RHEL-30926
  [1:1.8.0.412.b07-0.1.ea]
• Update to shenandoah-jdk8u412-b07 (EA)
• Update release notes for shenandoah-8u412-b07.
• Require tzdata 2024a due to upstream inclusion of JDK-8322725
• Only require tzdata 2023d for now as 2024a is unavailable in buildroot
• Resolves: RHEL-30926
  [1:1.8.0.412.b01-0.1.ea]
• Turn off xz multi-threading on i686 as it fails with an out of memory error
• Normalise whitespace
• Move to upstream tag style (shenandoah8ux-by) in preparation for eventually moving back to official sources
• generate_source_tarball.sh: Rename JCONSOLE_JS_PATCH{,_DEFAULT} to JCONSOLE_PATCH{,_DEFAULT} for brevity
• generate_source_tarball.sh: Adapt OPENJDK_LATEST logic to work with 8u Shenandoah fork
• generate_source_tarball.sh: Adapt version logic to work with 8u
• generate_source_tarball.sh: Add quoting for SCRIPT_DIR and JCONSOLE_PATCH (SC2086)
• generate_source_tarball.sh: Update examples in header for clarity
• generate_source_tarball.sh: Create directory in TMPDIR when using WITH_TEMP
• generate_source_tarball.sh: Only add --depth=1 on non-local repositories
• Move maintenance scripts to a scripts subdirectory
• icedtea_sync.sh: Update with a VCS mode that retrieves sources from a Mercurial repository
• jconsole.desktop.in: Restored by running icedtea_sync.sh
• policytool.desktop.in: Likewise.
• Restore IcedTea sources correctly in spec file
• discover_trees.sh: Set compile-command and indentation instructions for Emacs
• discover_trees.sh: shellcheck: Do not use -o (SC2166)
• discover_trees.sh: shellcheck: Remove x-prefixes since we use Bash (SC2268)
• discover_trees.sh: shellcheck: Double-quote variable references (SC2086)
• generate_source_tarball.sh: Add authorship
• icedtea_sync.sh: Set compile-command and indentation instructions for Emacs
• icedtea_sync.sh: shellcheck: Double-quote variable references (SC2086)
• icedtea_sync.sh: shellcheck: Remove x-prefixes since we use Bash (SC2268)
• openjdk_news.sh: Set compile-command and indentation instructions for Emacs
• openjdk_news.sh: shellcheck: Double-quote variable references (SC2086)
• openjdk_news.sh: shellcheck: Remove x-prefixes since we use Bash (SC2268)
• openjdk_news.sh: shellcheck: Remove deprecated egrep usage (SC2196)
• generate_source_tarball.sh: Handle an existing checkout
• generate_source_tarball.sh: Sync indentation with java-21-openjdk version
• generate_source_tarball.sh: Support using a subdirectory via TO_COMPRESS
• Related: RHEL-30926
  [1:1.8.0.412.b01-0.1.ea]
• Invoke xz in multi-threaded mode
• generate_source_tarball.sh: Add WITH_TEMP environment variable
• generate_source_tarball.sh: Multithread xz on all available cores
• generate_source_tarball.sh: Add OPENJDK_LATEST environment variable
• generate_source_tarball.sh: Update comment about tarball naming
• generate_source_tarball.sh: Reformat comment header
• generate_source_tarball.sh: Reformat and update help output
• generate_source_tarball.sh: Do a shallow clone, for speed
• generate_source_tarball.sh: Eliminate some removal prompting
• generate_source_tarball.sh: Make tarball reproducible
• generate_source_tarball.sh: Prefix temporary directory with temp-
• generate_source_tarball.sh: Remove temporary directory exit conditions
• generate_source_tarball.sh: Set compile-command in Emacs
• generate_source_tarball.sh: Remove REPO_NAME from FILE_NAME_ROOT
• generate_source_tarball.sh: Move PROJECT_NAME and REPO_NAME checks
• generate_source_tarball.sh: shellcheck: Remove x-prefixes since we use Bash (SC2268)
• generate_source_tarball.sh: shellcheck: Double-quote variable references (SC2086)
• generate_source_tarball.sh: shellcheck: Do not use -a (SC2166)
• generate_source_tarball.sh: shellcheck: Do not use $ on arithmetic variables (SC2004)
• Use backward-compatible patch syntax
• generate_source_tarball.sh: Ignore -ga tags with OPENJDK_LATEST
• generate_source_tarball.sh: Remove trailing period in echo
• generate_source_tarball.sh: Use long-style argument to grep
• generate_source_tarball.sh: Add license
• generate_source_tarball.sh: Add indentation instructions for Emacs
• Remove -T0 argument from systemtap tar invocation
• Related: RHEL-30926
  [1:1.8.0.412.b01-0.1.ea]
• Update to shenandoah-jdk8u412-b01 (EA)
• Update release notes for shenandoah-8u412-b01.
• Switch to EA mode.
• Related: RHEL-30926