Quote from robchur29 on July 25, 2021, 9:58 am

My objective is to install JDK 8 on either LEMP-STACK or Deb 10 Template. Any help or direction appreciated.

The challenge is related to Deb 10 which does not include JDK 8.

First request - I need to install a legacy app on Deb 10 w/ JDK 8 so I cannot use later versions of JDK and thus, are stuck needing to figure out JDK 8 install.

Secondary request - I am able to install JRE 8 [2] but cannot get JAVA_HOME setting to be recognized by setting [3] in /etc/environment by this script. [4]

Third report - Found a mention from the Jenkins docs on installing JDK 8 but direction does not work. [1]

 

 

[1] https://docs.antsle.com/get-started/setting-up-your-tech-stack/jenkins

[2] https://stackoverflow.com/questions/57031649/how-to-install-openjdk-8-jdk-on-debian-10-buster

[3] export JAVA_HOME="/usr/lib/jvm/adoptopenjdk-8-hotspot-arm64/jre/bin"

[4]

#!/bin/sh
# ----------------------------------------------------------------------------
# Copyright 2005-2012 WSO2, Inc. http://www.wso2.org
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# ----------------------------------------------------------------------------
# Main Script for the WSO2 Carbon Server
#
# Environment Variable Prequisites
#
# CARBON_HOME Home of WSO2 Carbon installation. If not set I will try
# to figure it out.
#
# JAVA_HOME Must point at your Java Development Kit installation.
#
# JAVA_OPTS (Optional) Java runtime options used when the commands
# is executed.
#
# NOTE: Borrowed generously from Apache Tomcat startup scripts.
# -----------------------------------------------------------------------------

# OS specific support. $var _must_ be set to either true or false.
#ulimit -n 100000

cygwin=false;
darwin=false;
os400=false;
mingw=false;
case "`uname`" in
CYGWIN*) cygwin=true;;
MINGW*) mingw=true;;
OS400*) os400=true;;
Darwin*) darwin=true
if [ -z "$JAVA_VERSION" ] ; then
JAVA_VERSION="CurrentJDK"
else
echo "Using Java version: $JAVA_VERSION"
fi
if [ -z "$JAVA_HOME" ] ; then
JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/${JAVA_VERSION}/Home
fi
;;
esac

# resolve links - $0 may be a softlink
PRG="$0"

while [ -h "$PRG" ]; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '.*/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`/"$link"
fi
done

# Get standard environment variables
PRGDIR=`dirname "$PRG"`

# Only set CARBON_HOME if not already set
[ -z "$CARBON_HOME" ] && CARBON_HOME=`cd "$PRGDIR/.." ; pwd`

# Set AXIS2_HOME. Needed for One Click JAR Download
AXIS2_HOME="$CARBON_HOME"

# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin; then
[ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CARBON_HOME" ] && CARBON_HOME=`cygpath --unix "$CARBON_HOME"`
[ -n "$AXIS2_HOME" ] && CARBON_HOME=`cygpath --unix "$CARBON_HOME"`
fi

# For OS400
if $os400; then
# Set job priority to standard for interactive (interactive - 6) by using
# the interactive priority - 6, the helper threads that respond to requests
# will be running at the same priority as interactive jobs.
COMMAND='chgjob job('$JOBNAME') runpty(6)'
system $COMMAND

# Enable multi threading
QIBM_MULTI_THREADED=Y
export QIBM_MULTI_THREADED
fi

# For Migwn, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$CARBON_HOME" ] &&
CARBON_HOME="`(cd "$CARBON_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
[ -n "$AXIS2_HOME" ] &&
CARBON_HOME="`(cd "$CARBON_HOME"; pwd)`"
# TODO classpath?
fi

if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD=java
fi
fi

if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly."
echo " CARBON cannot execute $JAVACMD"
exit 1
fi

# if JAVA_HOME is not set we're not happy
if [ -z "$JAVA_HOME" ]; then
echo "You must set the JAVA_HOME variable before running CARBON."
exit 1
fi

if [ -e "$CARBON_HOME/wso2carbon.pid" ]; then
PID=`cat "$CARBON_HOME"/wso2carbon.pid`
fi

# ----- Process the input command ----------------------------------------------
args=""
for c in $*
do
if [ "$c" = "--debug" ] || [ "$c" = "-debug" ] || [ "$c" = "debug" ]; then
CMD="--debug"
continue
elif [ "$CMD" = "--debug" ]; then
if [ -z "$PORT" ]; then
PORT=$c
fi
elif [ "$c" = "--stop" ] || [ "$c" = "-stop" ] || [ "$c" = "stop" ]; then
CMD="stop"
elif [ "$c" = "--start" ] || [ "$c" = "-start" ] || [ "$c" = "start" ]; then
CMD="start"
elif [ "$c" = "--version" ] || [ "$c" = "-version" ] || [ "$c" = "version" ]; then
CMD="version"
elif [ "$c" = "--restart" ] || [ "$c" = "-restart" ] || [ "$c" = "restart" ]; then
CMD="restart"
elif [ "$c" = "--test" ] || [ "$c" = "-test" ] || [ "$c" = "test" ]; then
CMD="test"
else
args="$args $c"
fi
done

if [ "$CMD" = "--debug" ]; then
if [ "$PORT" = "" ]; then
echo " Please specify the debug port after the --debug option"
exit 1
fi
if [ -n "$JAVA_OPTS" ]; then
echo "Warning !!!. User specified JAVA_OPTS will be ignored, once you give the --debug option."
fi
CMD="RUN"
JAVA_OPTS="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=$PORT"
echo "Please start the remote debugging client to continue..."
elif [ "$CMD" = "start" ]; then
if [ -e "$CARBON_HOME/wso2carbon.pid" ]; then
if ps -p $PID > /dev/null ; then
echo "Process is already running"
exit 0
fi
fi
export CARBON_HOME="$CARBON_HOME"
# using nohup sh to avoid erros in solaris OS.TODO
nohup sh "$CARBON_HOME"/bin/integrator.sh $args > /dev/null 2>&1 &
exit 0
elif [ "$CMD" = "stop" ]; then
export CARBON_HOME="$CARBON_HOME"
kill -term `cat "$CARBON_HOME"/wso2carbon.pid`
exit 0
elif [ "$CMD" = "restart" ]; then
export CARBON_HOME="$CARBON_HOME"
kill -term `cat "$CARBON_HOME"/wso2carbon.pid`
process_status=0
pid=`cat "$CARBON_HOME"/wso2carbon.pid`
while [ "$process_status" -eq "0" ]
do
sleep 1;
ps -p$pid 2>&1 > /dev/null
process_status=$?
done

# using nohup sh to avoid erros in solaris OS.TODO
nohup sh "$CARBON_HOME"/bin/integrator.sh $args > /dev/null 2>&1 &
exit 0
elif [ "$CMD" = "test" ]; then
JAVACMD="exec "$JAVACMD""
elif [ "$CMD" = "version" ]; then
cat "$CARBON_HOME"/bin/version.txt
cat "$CARBON_HOME"/bin/wso2carbon-version.txt
exit 0
fi

# ---------- Handle the SSL Issue with proper JDK version --------------------
jdk_17=`$JAVA_HOME/bin/java -version 2>&1 | grep "1.[7|8]"`
if [ "$jdk_17" = "" ]; then
echo " Starting WSO2 Carbon (in unsupported JDK)"
echo " [ERROR] CARBON is supported only on JDK 1.7 and 1.8"
fi

CARBON_XBOOTCLASSPATH=""
for f in "$CARBON_HOME"/wso2/lib/xboot/*.jar
do
if [ "$f" != "$CARBON_HOME/wso2/lib/xboot/*.jar" ];then
CARBON_XBOOTCLASSPATH="$CARBON_XBOOTCLASSPATH":$f
fi
done

JAVA_ENDORSED_DIRS="$CARBON_HOME/wso2/lib/endorsed":"$JAVA_HOME/jre/lib/endorsed":"$JAVA_HOME/lib/endorsed"

CARBON_CLASSPATH=""
if [ -e "$JAVA_HOME/lib/tools.jar" ]; then
CARBON_CLASSPATH="$JAVA_HOME/lib/tools.jar"
fi
for f in "$CARBON_HOME"/bin/*.jar
do
if [ "$f" != "$CARBON_HOME/bin/*.jar" ];then
CARBON_CLASSPATH="$CARBON_CLASSPATH":$f
fi
done
for t in "$CARBON_HOME"/wso2/lib/commons-lang*.jar
do
CARBON_CLASSPATH="$CARBON_CLASSPATH":$t
done
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
JAVA_HOME=`cygpath --absolute --windows "$JAVA_HOME"`
CARBON_HOME=`cygpath --absolute --windows "$CARBON_HOME"`
AXIS2_HOME=`cygpath --absolute --windows "$CARBON_HOME"`
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
JAVA_ENDORSED_DIRS=`cygpath --path --windows "$JAVA_ENDORSED_DIRS"`
CARBON_CLASSPATH=`cygpath --path --windows "$CARBON_CLASSPATH"`
CARBON_XBOOTCLASSPATH=`cygpath --path --windows "$CARBON_XBOOTCLASSPATH"`
fi

# ----- Execute The Requested Command -----------------------------------------

echo JAVA_HOME environment variable is set to $JAVA_HOME
echo CARBON_HOME environment variable is set to "$CARBON_HOME"

cd "$CARBON_HOME"

TMP_DIR="$CARBON_HOME"/tmp
if [ -d "$TMP_DIR" ]; then
rm -rf "$TMP_DIR"/*
fi

START_EXIT_STATUS=121
status=$START_EXIT_STATUS

if [ -z "$JVM_MEM_OPTS" ]; then
java_version=$("$JAVACMD" -version 2>&1 | awk -F '"' '/version/ {print $2}')
JVM_MEM_OPTS="-Xms256m -Xmx1024m"
if [ "$java_version" \< "1.8" ]; then
JVM_MEM_OPTS="$JVM_MEM_OPTS"
fi
fi
echo "Using Java memory options: $JVM_MEM_OPTS"

#To monitor a Carbon server in remote JMX mode on linux host machines, set the below system property.
# -Djava.rmi.server.hostname="your.IP.goes.here"

while [ "$status" = "$START_EXIT_STATUS" ]
do
$JAVACMD \
-Xbootclasspath/a:"$CARBON_XBOOTCLASSPATH" \
$JVM_MEM_OPTS \
-XX:+HeapDumpOnOutOfMemoryError \
-XX:HeapDumpPath="$CARBON_HOME/repository/logs/heap-dump.hprof" \
$JAVA_OPTS \
-Dcom.sun.management.jmxremote \
-classpath "$CARBON_CLASSPATH" \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" \
-Djava.io.tmpdir="$CARBON_HOME/wso2/tmp" \
-Dcatalina.base="$CARBON_HOME/wso2/lib/tomcat" \
-Dwso2.server.standalone=true \
-Dcarbon.registry.root=/ \
-Djava.command="$JAVACMD" \
-Dcarbon.home="$CARBON_HOME" \
-Dlogger.server.name="EI-Core" \
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
-Dcarbon.config.dir.path="$CARBON_HOME/conf" \
-Dcarbon.components.dir.path="$CARBON_HOME/wso2/components" \
-Dcarbon.extensions.dir.path="$CARBON_HOME/extensions" \
-Dcarbon.dropins.dir.path="$CARBON_HOME/dropins" \
-Dcarbon.external.lib.dir.path="$CARBON_HOME/lib" \
-Dcarbon.patches.dir.path="$CARBON_HOME/patches" \
-Dcarbon.servicepacks.dir.path="$CARBON_HOME/servicepacks" \
-Dcarbon.internal.lib.dir.path="$CARBON_HOME/wso2/lib" \
-Dei.extendedURIBasedDispatcher=org.wso2.carbon.integrator.core.handler.IntegratorStatefulHandler \
-Djava.util.logging.config.file="$CARBON_HOME/conf/etc/logging-bridge.properties" \
-Dcomponents.repo="$CARBON_HOME/wso2/components/plugins" \
-Dconf.location="$CARBON_HOME/conf"\
-Dcom.atomikos.icatch.file="$CARBON_HOME/wso2/lib/transactions.properties" \
-Dcom.atomikos.icatch.hide_init_file_path=true \
-Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false \
-Dorg.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER=true \
-Dcom.sun.jndi.ldap.connect.pool.authentication=simple \
-Dcom.sun.jndi.ldap.connect.pool.timeout=3000 \
-Dorg.terracotta.quartz.skipUpdateCheck=true \
-Djava.security.egd=file:/dev/./urandom \
-Dfile.encoding=UTF8 \
-Djava.net.preferIPv4Stack=true \
-Dcom.ibm.cacheLocalHost=true \
-DworkerNode=false \
-Dorg.wso2.ignoreHostnameVerification=true \
org.wso2.carbon.bootstrap.Bootstrap $*
status=$?
done