meta-java: initial commit

* taken over mostly stuff from oe classic
* cleaned up recipes
* added license checksums
* bump icedtea6-native to 1.8.11
* use jamvm from git as native

1 files changed, 518 insertions, 0 deletions

diff --git a/recipes-core/openjdk/openjdk-6-common.inc b/recipes-core/openjdk/openjdk-6-common.inc
new file mode 100644
index 0000000..ef1c41d
--- /dev/null
+++ b/recipes-core/openjdk/openjdk-6-common.inc
@@ -0,0 +1,518 @@
+DESCRIPTION = "Java runtime based upon the OpenJDK- and Icedtea Project"
+HOMEPAGE = "http://icedtea.classpath.org"
+LICENSE  = "GPL with Classpath Exception"
+PRIORITY = "optional"
+SECTION  = "libs"
+
+# Name of the icedtea tarball and top-level directory.
+ICEDTEA = "NEEDS TO BE SET"
+
+S = "${WORKDIR}/${ICEDTEA}"
+B = "${S}/build"
+
+INC_PR = "r11"
+
+SRC_URI = "\
+  ${ICEDTEA_URI} \
+  ${OPENJDK_URI} \
+  ${JAXWS_URI} \
+  ${JAF_URI} \
+  ${JAXP_URI} \
+  ${CACAO_URI} \
+  ${OEPATCHES} \
+  ${ICEDTEAPATCHES} \
+  file://jvm.cfg \
+  "
+
+JDKPN = "openjdk-6"
+JDK_DIR = "java-6-openjdk"
+
+PN = "${JDKPN}-jre"
+PROVIDES += "${JDKPN} ${PACKAGES}"
+
+DEPENDS = "giflib libpng jpeg cups \
+           xalan-j xerces-j rhino \
+           freetype libxinerama libxt libxp libxrender libxtst libxi \
+           alsa-lib libffi llvm2.9\
+           ant-native \
+           fastjar-native \
+           icedtea6-native \
+           cacaoh-openjdk-native \
+           zip-native \
+          "
+
+DEPENDS_append_libc-uclibc = " libiconv "
+
+# The OpenJDK build with interpreter optimizations for ARM depends on a binary
+# that generates constants for an assembler source file. There is no other
+# way than to generate this on a pseudo machine. Cross-compiling would not help
+# because structure sizes and/or alignment may differ.
+DEPENDS_append_arm = " qemu-native "
+
+
+# No package should directly depend on this (it should require
+# java2-runtime instead).
+PRIVATE_LIBS = "\
+        libunpack.so libverify.so libjava.so libzip.so libnpt.so \ 
+        libjava_crw_demo.so libhprof.so libnet.so libnio.so \
+        libmanagement.so libinstrument.so libjsound.so libjsoundalsa.so \
+        libj2pcsc.so libj2pkcs11.so libj2gss.so libmlib_image.so \
+        libawt.so libsplashscreen.so libfreetype.so.6 libfontmanager.so \
+        libjpeg.so liblcms.so librmi.so libjawt.so libjaas_unix.so \
+        libattach.so libjdwp.so libdt_socket.so libhpi.so libjli.so \
+        libmawt.so libjvm.so \
+        libversionCheck.so libcompiledMethodLoad.so libgctest.so \
+        libheapViewer.so libheapTracker.so libminst.so libmtrace.so \
+        libwaiters.so libhprof.so \
+       "
+
+
+inherit java autotools gettext
+
+export ALT_CUPS_HEADERS_PATH = "${STAGING_INCDIR}"
+export ALT_FREETYPE_HEADERS_PATH = "${STAGING_INCDIR}/freetype2"
+export ALT_FREETYPE_LIB_PATH = "${STAGING_LIBDIR}"
+export CACAO_CONFIGURE_ARGS = "\
+        ${@['','--enable-softfloat'][bb.data.getVar('TARGET_FPU',d,1) == 'soft']} \
+        --with-cacaoh=${STAGING_BINDIR_NATIVE}/cacaoh-openjdk-0.99.4"
+
+JAVA_HOME[unexport] = "1"
+
+EXTRA_OECONF = "\
+        --disable-docs \
+        --disable-pulse-java \
+        --disable-plugin \
+        \
+        --with-ecj=${STAGING_BINDIR_NATIVE}/foo \
+        --with-ecj-jar=${STAGING_DATADIR_JAVA_NATIVE}/ecj-bootstrap.jar \
+        --with-java=${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/bin/java \
+        --with-javac=${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/bin/javac \
+        --with-javah=${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/bin/javah \
+        --with-jar=${STAGING_BINDIR_NATIVE}/fastjar \
+        --with-rmic=${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/bin/rmic \
+        --with-xalan2-jar=${STAGING_DATADIR_JAVA}/xalan2.jar \
+        --with-xalan2-serializer-jar=${STAGING_DATADIR_JAVA}/serializer.jar \
+        --with-xerces2-jar=${STAGING_DATADIR_JAVA}/xercesImpl.jar \
+        --with-rhino=${STAGING_DATADIR_JAVA}/rhino.jar \
+        --with-openjdk-src-dir=${WORKDIR}/openjdk-src-dir \
+        --with-gcj-home=${WORKDIR}/fake-jdk \
+        --with-parallel-jobs=${JDK_JOBS} \
+        \
+        --with-libgcj-jar=${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/jre/lib/rt.jar \
+        \
+        --with-pkgversion=${PV} \
+        --with-cc-for-build=${BUILD_CC} \
+        --enable-zero \
+        --with-additional-vms=shark,cacao \
+        --enable-openjdk-cross-compilation \
+       "
+
+
+# OpenJDK uses slightly different names for certain arches. We need to know
+#       this to create some files which are expected by the build.
+def get_jdk_arch(d):
+  import bb
+
+  jdk_arch = bb.data.getVar('TARGET_ARCH', d, 1)
+  if jdk_arch == "x86_64":
+    jdk_arch = "amd64"
+  elif (jdk_arch == "i586" or jdk_arch == "i686"):
+    jdk_arch = "i586"
+
+  return jdk_arch
+
+JDK_ARCH = "${@get_jdk_arch(d)}"
+JDK_HOME = "${libdir_jvm}/${JDK_DIR}"
+
+# OpenJDK supports parallel compilation but uses a plain number for this.
+# In OE we have PARALLEL_MAKE which is the actual option passed to make,
+# e.g. "-j 4". 
+def get_jdk_jobs(d):
+        import bb
+
+        pm = bb.data.getVar('PARALLEL_MAKE', d, 1);
+        if not pm:
+                return "1"
+        
+        pm = pm.split(" ");
+        if (len(pm) == 2):
+                return pm[1]
+
+        # Whatever found in PARALLEL_MAKE was not suitable.
+        return "1"
+
+JDK_JOBS = "${@get_jdk_jobs(d)}"
+
+# A function that is needed in the Shark builds.
+def get_llvm_configure_arch(d):
+  import bb;
+
+  arch = bb.data.getVar('TARGET_ARCH', d, 1)
+  if arch == "x86_64" or arch == "i486" or arch == "i586" or arch == "i686":
+    arch = "x86"
+  elif arch == "arm":
+    arch = "arm"
+  elif arch == "mipsel":
+    arch = "mips"
+  elif arch == "powerpc":
+    arch = "powerpc"
+  else:
+    oefatal("Your target architecture is not supported by this recipe");
+
+  return arch
+
+# Custom preparation of the sources which:
+# - cleans up the sources
+# - copies the patches into the proper directory
+# - prepares the FakeJDK directory structure
+#DISABLED because of incompatibility with oe stable 2009: do_prepareconfigure () {
+do_configure_prepend() {
+  chmod -R ug+w ${WORKDIR}/openjdk-src-dir
+  (cd ${WORKDIR}/openjdk-src-dir && sh ${S}/fsg.sh)
+
+  # Automatically copy everything that starts with "icedtea" (or "cacao") and ends with
+  # ".patch" into the patches directory.
+  find ${WORKDIR} -maxdepth 1 -name "icedtea*.patch" -exec cp {} ${S}/patches \;
+  find ${WORKDIR} -maxdepth 1 -name "cacao*.patch" -exec cp {} ${S}/patches \;
+
+  # use now the rt.jar from icedtea6-native
+  mkdir -p ${WORKDIR}/fake-jdk/jre/lib
+  ln -sf ${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/jre/lib/rt.jar ${WORKDIR}/fake-jdk/jre/lib/rt.jar
+
+  symlinked=false
+  echo "Creating symlinks for fake-jdk"
+  mkdir -p ${WORKDIR}/fake-jdk/include
+  for i in `find ${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/include` ;do
+        bn=`basename $i`
+        echo "Symlinking: $bn"
+    ln -sf $i ${WORKDIR}/fake-jdk/include/$bn;
+        symlinked=true
+  done
+
+  # If the symlinks have not been created the built cannot continue. This
+  # can happen if icedtea6-native is not ready at this point. The recipe
+  # should make sure this is not the case but a little sanity checking
+  # in such a complicated build can't be wrong.
+  if [ x$symlinked = xfalse ]
+  then
+    echo"Build b0rken! Have not created any symlinks for fake-jdk!"
+  else
+    echo "fake-jdk setup appears sane."
+  fi
+}
+
+# Note: The following lines only work for OE.dev branch but cause an exception
+# in oe stable's 2009 bitbake. As such the function is prepended to do_configure instead.
+#addtask prepareconfigure after do_patch before do_configure
+# Makes prepareconfigure depend on icedtea6-native having being staged.
+#do_prepareconfigure[depends] += "icedtea6-native:do_populate_sysroot"
+
+
+do_configure_append() {
+        oe_runmake patch-ecj
+}
+
+# Work around broken variable quoting in oe-stable 2009 and provide the variable
+# via the environment which then overrides the erroneous value that was written
+# into '${ICETDEA}/Makefile'.
+# Icedtea's makefile is not compatible to parallelization so we cannot allow
+# passing a valid ${PARALLEL_MAKE} to it. OTOH OpenJDK's makefiles are
+# parallelizable and we need ${PARALLEL_MAKE} to derive the proper value.
+# The base for this quirk is that GNU Make only considers the last "-j" option.
+EXTRA_OEMAKE = '-j 1 CC="${CC}" CCC="${CXX}" CPP="${CPP}" CXX="${CXX}" CC_FOR_BUILD="${BUILD_CC}"'
+
+EXTRA_OEMAKE += ' \
+                OE_CFLAGS="${TARGET_CFLAGS}" \
+                OE_CPPFLAGS="${TARGET_CPPFLAGS}" \
+                OE_CXXFLAGS="${TARGET_CXXFLAGS}" \
+                OE_LDFLAGS="${TARGET_LDFLAGS}" \
+                ZIPEXE="${STAGING_BINDIR_NATIVE}/zip" \
+               '
+
+# Puts an OE specific string into the binary making it possible for the user
+# to know where it comes from (and blame the right people ...).
+DIST_ID = "Built for ${DISTRO}"
+DIST_NAME = "${DISTRO}"
+EXTRA_OEMAKE += 'DIST_NAME="${DIST_NAME}" DIST_ID="${DIST_ID}"'
+
+
+# llvm configure and compiles stuff
+
+export WANT_LLVM_RELEASE = "2.9"
+
+# Provides the target architecture to the configure script.
+export LLVM_CONFIGURE_ARCH="${@get_llvm_configure_arch(d)}"
+
+OE_LAUNCHER_LDFLAGS = "-Wl,-rpath-link,${STAGING_LIBDIR}/llvm2.9"
+
+EXTRA_OEMAKE += 'OE_LAUNCHER_LDFLAGS="${OE_LAUNCHER_LDFLAGS}"'
+
+
+# Large stack is required at least on x86_64 host, otherwise random segfaults appear:
+QEMU = "qemu-${TARGET_ARCH} ${QEMU_OPTIONS} -s 1048576 -L ${STAGING_DIR_TARGET}"
+
+EXTRA_OEMAKE += 'QEMU="${QEMU}"'
+
+# Name of the directory containing the compiled output
+BUILD_DIR = "build/linux-${JDK_ARCH}"
+
+# The build of OpenJDK is a 3-part process. For better restartability and overrideability they have been split into
+# three functions.
+# 1. compile Hotspot or Cacao (this one is supposed to be implemented according to wanted VM)
+# 2. compile openjdk-ecj (to have libraries as libjvm.so and libjava.so which are needed later)
+# 3. compile openjdk (the final result)
+
+do_compilestepone() {
+        oe_runmake bootstrap-directory-ecj
+
+        # now we need to override the tools.jar to point to the normal jdk's tools.jar
+        rm bootstrap/ecj/lib/tools.jar
+        ln -s ${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/lib/tools.jar bootstrap/ecj/lib/tools.jar
+
+        # First build hotspot to get a libjvm.so (to link corba in the icedtea-ecj build)
+        echo "1/3 Building Hotspot"
+        oe_runmake hotspot
+
+        # Remove spurious libarch directory/symlink
+        rm -rf bootstrap/ecj/jre/lib/${JDK_ARCH} || true
+
+                # Provide a symlink to the target arch's libjvm.so (to link against)
+        ln -s `pwd`/openjdk-ecj/${BUILD_DIR}/j2sdk-image/jre/lib/${JDK_ARCH} bootstrap/jdk1.6.0/jre/lib/${JDK_ARCH}
+
+        # fake j2sdk-image
+        rm openjdk-ecj/${BUILD_DIR}/j2sdk-image/include || true
+        cp -ar openjdk-ecj/${BUILD_DIR}/hotspot/import/include openjdk-ecj/${BUILD_DIR}/j2sdk-image/
+        install -d openjdk-ecj/${BUILD_DIR}/j2sdk-image/bin
+}
+addtask compilestepone after do_configure before do_compilesteptwo
+
+# This part can be shared between cacao and hotspot-zero builds.
+do_compilesteptwo() {
+        echo "2/3 Building bootstrap JDK"
+
+        # Now cross-compile bootstrap JDK
+        rm stamps/icedtea-against-ecj.stamp stamps/icedtea-ecj.stamp || true
+        oe_runmake icedtea-against-ecj
+
+        ln -sf ../openjdk-ecj/${BUILD_DIR}/j2sdk-image bootstrap/icedtea
+
+        #       Replace all executables with symlinks to their native equivalents.
+        for F in `find ${STAGING_LIBDIR_JVM_NATIVE}/icedtea6-native/bin -type f`
+        do
+                bf=`basename $F`
+                echo "Creating symlink for:" $bf
+                ln -sf $F bootstrap/icedtea/bin/$bf
+        done
+}
+addtask compilesteptwo after do_compilestepone before do_compile
+
+do_compile() {
+
+        echo "3/3 Building final JDK"
+
+        # Build the final Hotspot + OpenJDK
+        oe_runmake icedtea-against-icedtea \
+}
+
+do_install() {
+        install -d ${D}${libdir_jvm}
+        cp -R ${S}/build/openjdk/${BUILD_DIR}/j2sdk-image ${D}${JDK_HOME}
+
+        chmod u+rw -R ${D}${JDK_HOME}
+
+        # Fix symlink which would point into staging in the binary package.
+        ln -sf ${datadir_java}/rhino.jar ${D}${JDK_HOME}/jre/lib/rhino.jar
+
+        # JRE is a subset of JDK. So to save space and resemble what the BIG distros
+        # do we create symlinks from the JDK binaries to their counterparts in the
+        # JRE folder (which have to exist by that time b/c of dependencies). 
+        for F in `find ${D}${JDK_HOME}/jre/bin -type f`
+        do
+                bf=`basename $F`
+                echo "replace:" $bf
+                rm ${D}${JDK_HOME}/bin/$bf
+                ln -s ${JDK_HOME}/jre/bin/$bf ${D}${JDK_HOME}/bin/$bf
+        done
+
+        install -m644 ${WORKDIR}/jvm.cfg  ${D}${JDK_HOME}/jre/lib/${JDK_ARCH}/
+}
+
+# Notes about the ideas behind packaging:
+# 1) User should install openjdk-6-jre. This is a provider of 'java2-runtime'.
+# 2) This lets package mgmt install: openjdk-6-java
+# -> openjdk-6-vm-shark|openjdk-6-vm-zero|openjdk-6-vm-cacao -> openjdk-6-common
+#
+# With opkg the zero VM is chosen which is good b/c that is the best known (= compatible)
+# runtime. Installing other runtimes side-by-side is possible. Through jvm.cfg the following
+# order of precedence is enforced: zero, shark, cacao. User can chose a different runtime
+# by adding '-shark' or '-cacao' to the Java command (or by deinstalling an otherwise preferred
+# runtime)
+# 3) All other packages, including -jdk, are optional and not needed for normal Java apps.
+PACKAGES = " \
+            ${JDKPN}-jre \
+            ${JDKPN}-dbg \
+            ${JDKPN}-demo-dbg \
+            ${JDKPN}-demo \
+            ${JDKPN}-source \
+            ${JDKPN}-doc \
+            ${JDKPN}-jdk \
+            ${JDKPN}-java \
+            ${JDKPN}-vm-shark \
+            ${JDKPN}-vm-zero \
+            ${JDKPN}-vm-cacao \
+            ${JDKPN}-common \
+           "
+
+FILES_${JDKPN}-dbg = "\
+        ${JDK_HOME}/bin/.debug \
+        ${JDK_HOME}/lib/.debug \
+        ${JDK_HOME}/jre/bin/.debug \
+        ${JDK_HOME}/jre/lib/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/jli/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/native_threads/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/server/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/shark/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/headless/.debug \
+        ${JDK_HOME}/jre/lib/${JDK_ARCH}/xawt/.debug \
+       "
+
+FILES_${JDKPN}-demo = "${JDK_HOME}/demo ${JDK_HOME}/sample"
+RDEPENDS_${JDKPN}-demo = "java2-runtime"
+FILES_${JDKPN}-demo-dbg = "\
+        ${JDK_HOME}/demo/jvmti/gctest/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/heapTracker/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/heapViewer/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/hprof/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/minst/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/mtrace/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/versionCheck/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/waiters/lib/.debug \
+        ${JDK_HOME}/demo/jvmti/compiledMethodLoad/lib/.debug \
+       "
+
+FILES_${JDKPN}-source = "${JDK_HOME}/src.zip"
+
+FILES_${JDKPN}-java = "${JDK_HOME}/jre/bin/java"
+
+FILES_${JDKPN}-vm-zero = "${JDK_HOME}/jre/lib/arm/server/"
+
+FILES_${JDKPN}-vm-shark = "${JDK_HOME}/jre/lib/arm/shark/"
+
+FILES_${JDKPN}-vm-cacao = "${JDK_HOME}/jre/lib/arm/cacao/"
+
+FILES_${JDKPN}-common = "${JDK_HOME}/jre/ASSEMBLY_EXCEPTION \
+                          ${JDK_HOME}/jre/THIRD_PARTY_README \
+                          ${JDK_HOME}/jre/LICENSE \
+                          ${JDK_HOME}/jre/lib \
+                         "
+
+FILES_openjdk-6-jre_append = " \
+        ${JDK_HOME}/jre/bin/keytool \
+        ${JDK_HOME}/jre/bin/orbd \
+        ${JDK_HOME}/jre/bin/pack200 \
+        ${JDK_HOME}/jre/bin/rmid \
+        ${JDK_HOME}/jre/bin/rmiregistry \
+        ${JDK_HOME}/jre/bin/servertool \
+        ${JDK_HOME}/jre/bin/tnameserv \
+        ${JDK_HOME}/jre/bin/unpack200 \
+        ${JDK_HOME}/jre/bin/policytool \
+        ${JDK_HOME}/jre/bin/javaws \
+       "
+
+RDEPENDS_${JDKPN}-common = "librhino-java"
+
+RPROVIDES_${JDKPN}-vm-shark = "java2-vm"
+RPROVIDES_${JDKPN}-vm-zero = "java2-vm"
+RPROVIDES_${JDKPN}-vm-cacao = "java2-vm"
+
+RDEPENDS_${JDKPN}-java = "java2-vm"
+
+# For some reason shark and cacao do not automatically depends on -common.
+# So we add that manually.
+RDEPENDS_${JDKPN}-vm-shark = "${JDKPN}-common"
+RDEPENDS_${JDKPN}-vm-cacao = "${JDKPN}-common"
+
+# There is a symlink to a .so but this one is valid.
+INSANE_SKIP_${JDKPN}-vm-shark = "dev-so"
+INSANE_SKIP_${JDKPN}-vm-zero = "dev-so"
+INSANE_SKIP_${JDKPN}-vm-cacao = "dev-so"
+INSANE_SKIP_${JDKPN}-common = "dev-so"
+
+FILES_${JDKPN}-jdk = " \
+                       ${JDK_HOME}/bin \
+                       ${JDK_HOME}/lib \
+                       ${JDK_HOME}/include \
+                      "
+RDEPENDS_${JDKPN}-jre = "${JDKPN}-java"
+RPROVIDES_${JDKPN}-jre = "java2-runtime"
+
+RDEPENDS_${JDKPN}-jdk = "${JDKPN}-jre"
+
+FILES_${JDKPN}-doc = "${JDK_HOME}/man"
+
+pkg_postinst_${JDKPN}-vm-shark () {
+        if  grep -q "\-cacao KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg && grep -q "\-server ERROR" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+          sed -i -e "/\-cacao KNOWN/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+          echo "-cacao KNOWN" >> ${JDK_HOME}/jre/lib/arm/jvm.cfg
+        fi 
+
+        sed -i -e "/\-shark.*/d" -e "s|\(^\-server*\)|\-shark KNOWN\n\1|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+}
+
+pkg_prerm_${JDKPN}-vm-shark () {
+        sed -i -e "/^\-shark.*/d" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg 
+        if  grep -q "\-cacao KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg && grep -q "\-server ERROR" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+          sed -i -e "/\-cacao KNOWN/d" -e  "s|\(^\-server*\)|\-cacao KNOWN\n\1|" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+        fi
+}
+
+pkg_postinst_${JDKPN}-vm-cacao () {
+        if  grep -q "\-server ERROR" ${JDK_HOME}/jre/lib/arm/jvm.cfg && ! grep -q "\-shark KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+          sed -i -e "/\-cacao.*/d" -e  "s|\(^\-server*\)|\-cacao KNOWN\n\1|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+        else 
+          sed -i -e "s|^\-cacao.*|\-cacao KNOWN|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+        fi
+}
+
+pkg_prerm_${JDKPN}-vm-cacao () {
+     if  grep -q "\-server ERROR" ${JDK_HOME}/jre/lib/arm/jvm.cfg && ! grep -q "\-shark KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+        sed -i -e "/\-cacao.*/d" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+        echo "-cacao ERROR" >> ${JDK_HOME}/jre/lib/arm/jvm.cfg
+      else
+        sed -i -e "s|^\-cacao.*|\-cacao ERROR|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+      fi
+}
+
+pkg_postinst_${JDKPN}-vm-zero () {
+ if  grep -q "\-cacao KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg  && ! grep -q "\-shark KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+   sed -i -e "/\-cacao KNOWN/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+   echo "-cacao KNOWN" >> ${JDK_HOME}/jre/lib/arm/jvm.cfg
+ fi
+
+ sed -i -e "s|^\-server.*|\-server KNOWN|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+}
+
+pkg_prerm_${JDKPN}-vm-zero () {
+ if  grep -q "\-cacao KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg  && ! grep -q "\-shark KNOWN" ${JDK_HOME}/jre/lib/arm/jvm.cfg; then
+   sed -i -e "/\-cacao KNOWN/d" -e  "s|\(^\-server*\)|\-cacao KNOWN\n\1|" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+ fi
+
+ sed -i -e "s|^\-server.*|\-server ERROR|" -e "/^$/d" ${JDK_HOME}/jre/lib/arm/jvm.cfg
+}
+
+pkg_postinst_${JDKPN}-jre () {
+        update-alternatives --install ${bindir}/java java ${JDK_HOME}/jre/bin/java 15
+}
+
+pkg_prerm_${JDKPN}-jre () {
+        update-alternatives --remove java ${JDK_HOME}/jre/bin/java
+}
+
+pkg_postinst_${JDKPN}-jdk () {
+        update-alternatives --install ${bindir}/javac javac ${JDK_HOME}/bin/javac 15
+}
+
+pkg_prerm_${JDKPN}-jdk () {
+        update-alternatives --remove javac ${JDK_HOME}/bin/javac
+}