OpenJDK JDK 18 initial release

9 files changed, 572 insertions, 0 deletions

diff --git a/.SRCINFO b/.SRCINFO
new file mode 100644
index 000000000000..8fa630e2bf74
--- /dev/null
+++ b/.SRCINFO
@@ -0,0 +1,115 @@
+pkgbase = java18-openjdk
+	pkgver = 18.0.2.u1
+	pkgrel = 1
+	url = https://openjdk.java.net/
+	arch = x86_64
+	license = custom
+	makedepends = java-environment=18
+	makedepends = cpio
+	makedepends = unzip
+	makedepends = zip
+	makedepends = libelf
+	makedepends = libcups
+	makedepends = libx11
+	makedepends = libxrender
+	makedepends = libxtst
+	makedepends = libxt
+	makedepends = libxext
+	makedepends = libxrandr
+	makedepends = alsa-lib
+	makedepends = pandoc
+	makedepends = graphviz
+	makedepends = freetype2
+	makedepends = libjpeg-turbo
+	makedepends = giflib
+	makedepends = libpng
+	makedepends = lcms2
+	makedepends = libnet
+	makedepends = bash
+	makedepends = harfbuzz
+	makedepends = gcc-libs
+	makedepends = glibc
+	options = !lto
+	source = https://github.com/openjdk/jdk18u/archive/jdk-18.0.2+1.tar.gz
+	source = freedesktop-java.desktop
+	source = freedesktop-jconsole.desktop
+	source = freedesktop-jshell.desktop
+	sha256sums = b4587238b714764dd77720e5c71e6f44871b09468810c4e82f51408ae0182989
+	sha256sums = 85c4742764590783160af74587a47269e6797fbdf18ec485c7644bd239adf61d
+	sha256sums = abac1ab09a33a3654378bc69be5a7cf075263ab3ae9efec1eb25cf388e711bb7
+	sha256sums = e7cce0ecf868f656d8dc2eb25ab82ab665526a0a28aba20f02632dd29962dac3
+
+pkgname = jre18-openjdk-headless
+	pkgdesc = OpenJDK Java 18 headless runtime environment
+	install = install_jre-openjdk-headless.sh
+	depends = java-runtime-common>=3
+	depends = ca-certificates-utils
+	depends = nss
+	depends = libjpeg-turbo
+	depends = libjpeg.so
+	depends = lcms2
+	depends = liblcms2.so
+	depends = libnet
+	depends = freetype2
+	depends = libfreetype.so
+	depends = harfbuzz
+	depends = libharfbuzz.so
+	depends = glibc
+	depends = gcc-libs
+	optdepends = java-rhino: for some JavaScript support
+	provides = java-runtime-headless=18
+	provides = java-runtime-headless-openjdk=18
+	provides = jre18-openjdk-headless=18.0.2.u1-1
+	backup = etc/java18-openjdk/logging.properties
+	backup = etc/java18-openjdk/management/jmxremote.access
+	backup = etc/java18-openjdk/management/jmxremote.password.template
+	backup = etc/java18-openjdk/management/management.properties
+	backup = etc/java18-openjdk/net.properties
+	backup = etc/java18-openjdk/security/java.policy
+	backup = etc/java18-openjdk/security/java.security
+	backup = etc/java18-openjdk/security/policy/README.txt
+	backup = etc/java18-openjdk/security/policy/limited/default_US_export.policy
+	backup = etc/java18-openjdk/security/policy/limited/default_local.policy
+	backup = etc/java18-openjdk/security/policy/limited/exempt_local.policy
+	backup = etc/java18-openjdk/security/policy/unlimited/default_US_export.policy
+	backup = etc/java18-openjdk/security/policy/unlimited/default_local.policy
+	backup = etc/java18-openjdk/sound.properties
+
+pkgname = jre18-openjdk
+	pkgdesc = OpenJDK Java 18 full runtime environment
+	install = install_jre-openjdk.sh
+	depends = jre18-openjdk-headless=18.0.2.u1-1
+	depends = giflib
+	depends = libgif.so
+	depends = glibc
+	depends = gcc-libs
+	depends = libpng
+	optdepends = alsa-lib: for basic sound support
+	optdepends = gtk2: for the Gtk+ 2 look and feel - desktop usage
+	optdepends = gtk3: for the Gtk+ 3 look and feel - desktop usage
+	provides = java-runtime=18
+	provides = java-runtime-openjdk=18
+	provides = jre18-openjdk=18.0.2.u1-1
+
+pkgname = jdk18-openjdk
+	pkgdesc = OpenJDK Java 18 development kit
+	install = install_jdk-openjdk.sh
+	depends = jre18-openjdk=18.0.2.u1-1
+	depends = java-environment-common=3
+	depends = hicolor-icon-theme
+	depends = libelf
+	depends = glibc
+	depends = gcc-libs
+	provides = java-environment=18
+	provides = java-environment-openjdk=18
+	provides = jdk18-openjdk=18.0.2.u1-1
+
+pkgname = openjdk18-src
+	pkgdesc = OpenJDK Java 18 sources
+	depends = jdk18-openjdk=18.0.2.u1-1
+	provides = openjdk18-src=18.0.2.u1-1
+
+pkgname = openjdk18-doc
+	pkgdesc = OpenJDK Java 18 documentation
+	depends = jdk18-openjdk=18.0.2.u1-1
+	provides = openjdk18-doc=18.0.2.u1-1
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000000..3767034074ba
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+pkg/
+src/
+*.tar.zst
+*.tar.gz
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..0a634d9832a0
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,288 @@
+# Maintainer: Levente Polyak <anthraxx[at]archlinux[dot]org>
+# Maintainer: Frederik Schwan <freswa at archlinux dot org>
+# Contributor: Guillaume ALAUX <guillaume@archlinux.org>
+
+# TODO add test, see about packaging jtreg and using it here
+
+pkgbase=java18-openjdk
+pkgname=('jre18-openjdk-headless' 'jre18-openjdk' 'jdk18-openjdk' 'openjdk18-src' 'openjdk18-doc')
+_majorver=18
+_minorver=0
+_securityver=2
+_updatever=1
+pkgver=${_majorver}.${_minorver}.${_securityver}.u${_updatever}
+#pkgver=${_majorver}.u${_updatever}
+pkgrel=1
+_git_tag=jdk-${_majorver}.${_minorver}.${_securityver}+${_updatever}
+#_git_tag=jdk-${_majorver}+${_updatever}
+arch=('x86_64')
+url='https://openjdk.java.net/'
+license=('custom')
+makedepends=('java-environment=18' 'cpio' 'unzip' 'zip' 'libelf' 'libcups' 'libx11'
+             'libxrender' 'libxtst' 'libxt' 'libxext' 'libxrandr' 'alsa-lib' 'pandoc'
+             'graphviz' 'freetype2' 'libjpeg-turbo' 'giflib' 'libpng' 'lcms2'
+             'libnet' 'bash' 'harfbuzz' 'gcc-libs' 'glibc')
+options=(!lto)
+source=(https://github.com/openjdk/jdk${_majorver}u/archive/${_git_tag}.tar.gz
+        freedesktop-java.desktop
+        freedesktop-jconsole.desktop
+        freedesktop-jshell.desktop)
+sha256sums=('b4587238b714764dd77720e5c71e6f44871b09468810c4e82f51408ae0182989'
+            '85c4742764590783160af74587a47269e6797fbdf18ec485c7644bd239adf61d'
+            'abac1ab09a33a3654378bc69be5a7cf075263ab3ae9efec1eb25cf388e711bb7'
+            'e7cce0ecf868f656d8dc2eb25ab82ab665526a0a28aba20f02632dd29962dac3')
+
+case "${CARCH}" in
+  x86_64) _JARCH='x86_64';;
+  i686)   _JARCH='x86';;
+esac
+
+_jvmdir=/usr/lib/jvm/java-${_majorver}-openjdk
+_jdkdir=jdk${_majorver}u-${_git_tag//+/-}
+_imgdir=${_jdkdir}/build/linux-${_JARCH}-server-release/images
+
+_nonheadless=(lib/libawt_xawt.{so,debuginfo}
+              lib/libjawt.{so,debuginfo}
+              lib/libjsound.{so,debuginfo}
+              lib/libsplashscreen.{so,debuginfo})
+
+build() {
+  cd ${_jdkdir}
+
+  NUM_PROC_OPT=''
+  MAKEFLAG_J=$(echo ${MAKEFLAGS} | sed -En 's/.*-j([0-9]+).*/\1/p')
+  if [ -n "${MAKEFLAG_J}" ]; then
+    # http://hg.openjdk.java.net/jdk10/jdk10/file/85e6cb013b98/make/InitSupport.gmk#l105
+    echo "Removing '-j${MAKEFLAG_J}' from MAKEFLAGS to prevent build fail. Passing it directly to ./configure."
+    export MAKEFLAGS=${MAKEFLAGS/-j${MAKEFLAG_J}/}
+    NUM_PROC_OPT="--with-num-cores=${MAKEFLAG_J}"
+  fi
+
+  # Avoid optimization of HotSpot to be lowered from O3 to O2
+  local _CFLAGS="${CFLAGS//-O2/-O3} ${CPPFLAGS} -fcommon"
+  local _CXXFLAGS="${CXXFLAGS//-O2/-O3} ${CPPFLAGS} -fcommon"
+  local _LDFLAGS=${LDFLAGS}
+  if [[ ${CARCH} = i686 ]]; then
+    echo "Removing '-fno-plt' from CFLAGS and CXXFLAGS to prevent build fail with this architecture"
+    _CFLAGS=${CFLAGS/-fno-plt/}
+    _CXXFLAGS=${CXXFLAGS/-fno-plt/}
+  fi
+
+  # TODO: Should be rechecked for the next releases
+  # compiling with -fexceptions leads to:
+  # /usr/bin/ld: /build/java-openjdk/src/jdk18u-jdk-18.0.3-2/build/linux-x86_64-server-release/hotspot/variant-server/libjvm/objs/zPhysicalMemory.o: in function `ZList<ZMemory>::~ZList()':
+  # /build/java-openjdk/src/jdk18u-jdk-18.0.3-2/src/hotspot/share/gc/z/zList.hpp:54: undefined reference to `ZListNode<ZMemory>::~ZListNode()'
+  # collect2: error: ld returned 1 exit status
+  _CFLAGS=${CFLAGS/-fexceptions/}
+  _CXXFLAGS=${CXXFLAGS/-fexceptions/}
+
+  # CFLAGS, CXXFLAGS and LDFLAGS are ignored as shown by a warning
+  # in the output of ./configure unless used like such:
+  #  --with-extra-cflags="${CFLAGS}"
+  #  --with-extra-cxxflags="${CXXFLAGS}"
+  #  --with-extra-ldflags="${LDFLAGS}"
+  # See also paragraph "Configure Control Variables from "jdk${_majorver}-${_git_tag}/common/doc/building.md
+  unset CFLAGS
+  unset CXXFLAGS
+  unset LDFLAGS
+
+  bash configure \
+    --with-version-build="${_updatever}" \
+    --with-version-pre="" \
+    --with-version-opt="" \
+    --with-stdc++lib=dynamic \
+    --with-extra-cflags="${_CFLAGS}" \
+    --with-extra-cxxflags="${_CXXFLAGS}" \
+    --with-extra-ldflags="${_LDFLAGS}" \
+    --with-libjpeg=system \
+    --with-giflib=system \
+    --with-libpng=system \
+    --with-lcms=system \
+    --with-zlib=system \
+    --with-harfbuzz=system \
+    --with-jvm-features=zgc \
+    --enable-unlimited-crypto \
+    --disable-warnings-as-errors \
+    ${NUM_PROC_OPT}
+    #--disable-javac-server
+
+  make images legacy-jre-image docs
+
+  # https://bugs.openjdk.java.net/browse/JDK-8183610
+  find "../${_imgdir}" -iname '*.so' -exec chmod +x {} \;
+}
+
+check() {
+  cd ${_jdkdir}
+  # TODO package jtreg
+  # make -k check
+}
+
+package_jre18-openjdk-headless() {
+  pkgdesc="OpenJDK Java ${_majorver} headless runtime environment"
+  depends=('java-runtime-common>=3' 'ca-certificates-utils' 'nss' 'libjpeg-turbo' 'libjpeg.so'
+           'lcms2' 'liblcms2.so' 'libnet' 'freetype2' 'libfreetype.so' 'harfbuzz' 'libharfbuzz.so'
+           'glibc' 'gcc-libs')
+  optdepends=('java-rhino: for some JavaScript support')
+  provides=("java-runtime-headless=${_majorver}" "java-runtime-headless-openjdk=${_majorver}" "jre${_majorver}-openjdk-headless=${pkgver}-${pkgrel}")
+  backup=(etc/${pkgbase}/logging.properties
+          etc/${pkgbase}/management/jmxremote.access
+          etc/${pkgbase}/management/jmxremote.password.template
+          etc/${pkgbase}/management/management.properties
+          etc/${pkgbase}/net.properties
+          etc/${pkgbase}/security/java.policy
+          etc/${pkgbase}/security/java.security
+          etc/${pkgbase}/security/policy/README.txt
+          etc/${pkgbase}/security/policy/limited/default_US_export.policy
+          etc/${pkgbase}/security/policy/limited/default_local.policy
+          etc/${pkgbase}/security/policy/limited/exempt_local.policy
+          etc/${pkgbase}/security/policy/unlimited/default_US_export.policy
+          etc/${pkgbase}/security/policy/unlimited/default_local.policy
+          etc/${pkgbase}/sound.properties)
+  install=install_jre-openjdk-headless.sh
+
+  cd ${_imgdir}/jre
+
+  install -dm 755 "${pkgdir}${_jvmdir}"
+
+  cp -a bin lib \
+    "${pkgdir}${_jvmdir}"
+
+  for f in "${_nonheadless[@]}"; do
+    rm "${pkgdir}${_jvmdir}/${f}"
+  done
+
+  cp ../jdk/release "${pkgdir}${_jvmdir}"
+  cp ../jdk/lib/modules "${pkgdir}${_jvmdir}/lib"
+
+  # Conf
+  install -dm 755 "${pkgdir}/etc"
+  cp -r conf "${pkgdir}/etc/${pkgbase}"
+  ln -s /etc/${pkgbase} "${pkgdir}/${_jvmdir}/conf"
+
+  # Legal
+  install -dm 755 "${pkgdir}/usr/share/licenses"
+  cp -r legal "${pkgdir}/usr/share/licenses/${pkgbase}"
+  ln -s ${pkgbase} "${pkgdir}/usr/share/licenses/${pkgname}"
+  ln -s /usr/share/licenses/${pkgbase} "${pkgdir}/${_jvmdir}/legal"
+
+  # Man pages
+  for f in bin/*; do
+    f=$(basename "${f}")
+    _man=../jdk/man/man1/"${f}.1"
+    test -f "${_man}" && install -Dm 644 "${_man}" "${pkgdir}/usr/share/man/man1/${f}-openjdk${_majorver}.1"
+  done
+  ln -s /usr/share/man "${pkgdir}/${_jvmdir}/man"
+
+  # Link JKS keystore from ca-certificates-utils
+  rm -f "${pkgdir}${_jvmdir}/lib/security/cacerts"
+  ln -sf /etc/ssl/certs/java/cacerts "${pkgdir}${_jvmdir}/lib/security/cacerts"
+}
+
+package_jre18-openjdk() {
+  pkgdesc="OpenJDK Java ${_majorver} full runtime environment"
+  depends=("jre${_majorver}-openjdk-headless=${pkgver}-${pkgrel}" 'giflib' 'libgif.so'
+           'glibc' 'gcc-libs' 'libpng')
+  optdepends=('alsa-lib: for basic sound support'
+              'gtk2: for the Gtk+ 2 look and feel - desktop usage'
+              'gtk3: for the Gtk+ 3 look and feel - desktop usage')
+  provides=("java-runtime=${_majorver}" "java-runtime-openjdk=${_majorver}" "jre${_majorver}-openjdk=${pkgver}-${pkgrel}")
+  install=install_jre-openjdk.sh
+
+  cd ${_imgdir}/jre
+
+  install -dm 755 "${pkgdir}${_jvmdir}"
+
+  for f in "${_nonheadless[@]}"; do
+    install -Dm 644 ${f} "${pkgdir}${_jvmdir}/${f}"
+  done
+
+  # Licenses
+  install -dm 755 "${pkgdir}/usr/share/licenses"
+  ln -s ${pkgbase} "${pkgdir}/usr/share/licenses/${pkgname}"
+}
+
+package_jdk18-openjdk() {
+  pkgdesc="OpenJDK Java ${_majorver} development kit"
+  depends=("jre${_majorver}-openjdk=${pkgver}-${pkgrel}" 'java-environment-common=3'
+           'hicolor-icon-theme' 'libelf' 'glibc' 'gcc-libs')
+  provides=("java-environment=${_majorver}" "java-environment-openjdk=${_majorver}" "jdk${_majorver}-openjdk=${pkgver}-${pkgrel}")
+  install=install_jdk-openjdk.sh
+
+  cd ${_imgdir}/jdk
+
+  install -dm 755 "${pkgdir}${_jvmdir}"
+
+  cp -a bin demo include jmods lib \
+    "${pkgdir}${_jvmdir}"
+
+  rm "${pkgdir}${_jvmdir}/lib/src.zip"
+
+  # Remove files held by JRE
+  pushd ../jre
+  for d in bin lib; do
+    find ${d} ! -type d -exec rm "${pkgdir}${_jvmdir}/{}" \;
+  done
+  popd
+  find "${pkgdir}${_jvmdir}/lib" -type d -empty -delete
+
+  # Conf files all belong to JRE
+
+  # Legal
+  install -dm 755 "${pkgdir}/usr/share/licenses"
+  cp -r legal "${pkgdir}/usr/share/licenses/${pkgbase}"
+  pushd ../jre/legal
+  find . ! -type d -exec rm "${pkgdir}/usr/share/licenses/${pkgbase}/{}" \;
+  popd
+  find "${pkgdir}/usr/share/licenses" -type d -empty -delete
+  ln -s ${pkgbase} "${pkgdir}/usr/share/licenses/${pkgname}"
+
+  # Man pages
+  for f in bin/*; do
+    f=$(basename "${f}")
+    _man=man/man1/"${f}.1"
+    test -f "../jre/bin/${f}" && continue
+    test -f "${_man}" && install -Dm 644 "${_man}" "${pkgdir}/usr/share/man/man1/${f}-openjdk${_majorver}.1"
+  done
+
+  # Icons
+  for s in 16 24 32 48; do
+    install -Dm 644 \
+      "${srcdir}/${_jdkdir}/src/java.desktop/unix/classes/sun/awt/X11/java-icon${s}.png" \
+      "${pkgdir}/usr/share/icons/hicolor/${s}x${s}/apps/${pkgbase}.png"
+  done
+
+  # Desktop files
+  for f in jconsole java jshell; do
+    install -Dm 644 \
+      "${srcdir}/freedesktop-${f}.desktop" \
+      "${pkgdir}/usr/share/applications/${f}-${pkgbase}.desktop"
+  done
+}
+
+package_openjdk18-src() {
+  pkgdesc="OpenJDK Java ${_majorver} sources"
+  # Depends on JDK to get license files
+  depends=("jdk${_majorver}-openjdk=${pkgver}-${pkgrel}")
+  provides=("openjdk${_majorver}-src=${pkgver}-${pkgrel}")
+
+  install -Dm 644 -t "${pkgdir}${_jvmdir}/lib" ${_imgdir}/jdk/lib/src.zip
+
+  install -dm 755 "${pkgdir}/usr/share/licenses"
+  ln -s ${pkgbase} "${pkgdir}/usr/share/licenses/${pkgname}"
+}
+
+package_openjdk18-doc() {
+  pkgdesc="OpenJDK Java ${_majorver} documentation"
+  # Depends on JDK to get license files
+  depends=("jdk${_majorver}-openjdk=${pkgver}-${pkgrel}")
+  provides=("openjdk${_majorver}-doc=${pkgver}-${pkgrel}")
+
+  install -dm 755 "${pkgdir}/usr/share/doc"
+  cp -r ${_imgdir}/docs "${pkgdir}/usr/share/doc/${pkgbase}"
+
+  install -dm 755 "${pkgdir}/usr/share/licenses"
+  ln -s ${pkgbase} "${pkgdir}/usr/share/licenses/${pkgname}"
+}
+
+# vim: ts=2 sw=2 et:
diff --git a/freedesktop-java.desktop b/freedesktop-java.desktop
new file mode 100644
index 000000000000..dfb8482575aa
--- /dev/null
+++ b/freedesktop-java.desktop
@@ -0,0 +1,12 @@
+[Desktop Entry]
+Name=OpenJDK Java 18 Runtime
+Name[fi]=OpenJDK Java 18 - ajonaikainen ympäristö
+Comment=OpenJDK Java 18 Runtime
+Comment[fi]=OpenJDK Java 18 - ajonaikainen ympäristö
+Keywords=java;runtime
+Exec=/usr/lib/jvm/java-18-openjdk/bin/java -jar
+Terminal=false
+Type=Application
+Icon=java18-openjdk
+MimeType=application/x-java-archive;application/java-archive;application/x-jar;
+NoDisplay=true
diff --git a/freedesktop-jconsole.desktop b/freedesktop-jconsole.desktop
new file mode 100644
index 000000000000..44fb3b44beea
--- /dev/null
+++ b/freedesktop-jconsole.desktop
@@ -0,0 +1,11 @@
+[Desktop Entry]
+Name=OpenJDK Java 18 Console
+Name[fi]=OpenJDK Java 18 - konsoli
+Comment=OpenJDK Java 18 Monitoring & Management Console
+Comment[fi]=OpenJDK Java 18 - valvonta- ja hallintakonsoli
+Keywords=java;console;monitoring
+Exec=/usr/lib/jvm/java-18-openjdk/bin/jconsole
+Terminal=false
+Type=Application
+Icon=java18-openjdk
+Categories=Application;System;
diff --git a/freedesktop-jshell.desktop b/freedesktop-jshell.desktop
new file mode 100644
index 000000000000..d513704e9f6a
--- /dev/null
+++ b/freedesktop-jshell.desktop
@@ -0,0 +1,9 @@
+[Desktop Entry]
+Name=OpenJDK Java 18 Shell
+Comment=OpenJDK Java 18 Shell
+Keywords=java;shell
+Exec=/usr/lib/jvm/java-18-openjdk/bin/jshell
+Terminal=true
+Type=Application
+Icon=java18-openjdk
+Categories=Application;System;
diff --git a/install_jdk-openjdk.sh b/install_jdk-openjdk.sh
new file mode 100644
index 000000000000..76300b9cbf43
--- /dev/null
+++ b/install_jdk-openjdk.sh
@@ -0,0 +1,50 @@
+THIS_JDK='java-18-openjdk'
+
+fix_default() {
+  if [ ! -x /usr/bin/java ]; then
+    /usr/bin/archlinux-java unset
+    echo ""
+  else
+    /usr/bin/archlinux-java get
+  fi
+}
+
+post_install() {
+  default=$(fix_default)
+  case ${default} in
+    "")
+      /usr/bin/archlinux-java set ${THIS_JDK}
+      ;;
+    ${THIS_JDK})
+      # Nothing
+      ;;
+    *)
+      echo "Default Java environment is already set to '${default}'"
+      echo "See 'archlinux-java help' to change it"
+      ;;
+  esac
+
+  if [ ! -f /etc/ssl/certs/java/cacerts ]; then
+    /usr/bin/update-ca-trust
+  fi
+}
+
+post_upgrade() {
+  default=$(fix_default)
+  if [ -z "${default}" ]; then
+    /usr/bin/archlinux-java set ${THIS_JDK}
+  fi
+
+  if [ ! -f /etc/ssl/certs/java/cacerts ]; then
+    /usr/bin/update-ca-trust
+  fi
+}
+
+pre_remove() {
+  if [ "x$(fix_default)" = "x${THIS_JDK}" ]; then
+    # Check JRE is still available
+    if [ -x /usr/lib/jvm/${THIS_JDK}/bin/java ]; then
+      /usr/bin/archlinux-java unset
+    fi
+  fi
+}
diff --git a/install_jre-openjdk-headless.sh b/install_jre-openjdk-headless.sh
new file mode 100644
index 000000000000..cee45b4ff488
--- /dev/null
+++ b/install_jre-openjdk-headless.sh
@@ -0,0 +1,48 @@
+THIS_JRE='java-18-openjdk'
+
+fix_default() {
+  if [ ! -x /usr/bin/java ]; then
+    /usr/bin/archlinux-java unset
+    echo ""
+  else
+    /usr/bin/archlinux-java get
+  fi
+}
+
+post_install() {
+  default=$(fix_default)
+  case ${default} in
+    "")
+      /usr/bin/archlinux-java set ${THIS_JRE}
+      ;;
+    ${THIS_JRE})
+      # Nothing
+      ;;
+    *)
+      echo "Default Java environment is already set to '${default}'"
+      echo "See 'archlinux-java help' to change it"
+      ;;
+  esac
+
+  if [ ! -f /etc/ssl/certs/java/cacerts ]; then
+    /usr/bin/update-ca-trust
+  fi
+}
+
+post_upgrade() {
+  if [ -z "$(fix_default)" ]; then
+    /usr/bin/archlinux-java set ${THIS_JRE}
+  fi
+
+  if [ ! -f /etc/ssl/certs/java/cacerts ]; then
+    /usr/bin/update-ca-trust
+  fi
+}
+
+pre_remove() {
+  default=$(fix_default)
+  if [ "x${default}" = "x${THIS_JRE}" ]; then
+    /usr/bin/archlinux-java unset
+    echo "No Java environment is set as default anymore"
+  fi
+}
diff --git a/install_jre-openjdk.sh b/install_jre-openjdk.sh
new file mode 100644
index 000000000000..75a2eb12aa7f
--- /dev/null
+++ b/install_jre-openjdk.sh
@@ -0,0 +1,35 @@
+THIS_JRE='java-18-openjdk'
+
+fix_default() {
+  if [ ! -x /usr/bin/java ]; then
+    /usr/bin/archlinux-java unset
+    echo ""
+  else
+    /usr/bin/archlinux-java get
+  fi
+}
+
+post_install() {
+  default=$(fix_default)
+  case ${default} in
+    "")
+      /usr/bin/archlinux-java set ${THIS_JRE}
+      ;;
+    ${THIS_JRE})
+      # Nothing
+      ;;
+    *)
+      echo "Default Java environment is already set to '${default}'"
+      echo "See 'archlinux-java help' to change it"
+      ;;
+  esac
+
+  echo "when you use a non-reparenting window manager,"
+  echo "set _JAVA_AWT_WM_NONREPARENTING=1 in /etc/profile.d/jre.sh"
+}
+
+post_upgrade() {
+  if [ -z "$(fix_default)" ]; then
+    /usr/bin/archlinux-java set ${THIS_JRE}
+  fi
+}