OpenJDK-1.7.0.65/IcedTea-2.5.2

Configuration Information

There are now two OpenJDK SDKs installed in /opt. You should decide on which one you would like to use as the default. For example if you decide to use the precompiled OpenJDK, do the following as the root user:

ln -sfv OpenJDK-1.7.0.65-bin /opt/jdk

The information below assumes your system is set up using the instructions found in “The Bash Shell Startup Files”. You may need to extract the relevant information below and incorporate it into your system's startup files if your system is set up differently.

Add the following openjdk.sh shell startup file to the /etc/profile.d directory with the following commands as the root user:

cat >> /etc/profile.d/openjdk.sh << "EOF"
# Begin /etc/profile.d/openjdk.sh

# Set JAVA_HOME directory
JAVA_HOME=/opt/jdk

# Adjust PATH
pathappend $JAVA_HOME/bin PATH

pathappend $JAVA_HOME/include       C_INCLUDE_PATH
pathappend $JAVA_HOME/include/linux C_INCLUDE_PATH
pathappend $JAVA_HOME/include       CPLUS_INCLUDE_PATH
pathappend $JAVA_HOME/include/linux CPLUS_INCLUDE_PATH

# Auto Java CLASSPATH
# Copy jar files to, or create symlinks in this directory

AUTO_CLASSPATH_DIR=/usr/share/java

pathprepend . CLASSPATH

for dir in `find ${AUTO_CLASSPATH_DIR} -type d 2>/dev/null`; do
    pathappend $dir CLASSPATH
done

for jar in `find ${AUTO_CLASSPATH_DIR} -name "*.jar" 2>/dev/null`; do
    pathappend $jar CLASSPATH
done

export JAVA_HOME CLASSPATH C_INCLUDE_PATH CPLUS_INCLUDE_PATH
unset AUTO_CLASSPATH_DIR dir jar

# End /etc/profile.d/openjdk.sh
EOF

Finally, add the man pages to man_db's configuration. As the root user:

cat >> /etc/profile.d/extrapaths.sh << "EOF" &&
# Begin Java addition
pathappend /opt/jdk/man       MANPATH
# End Java addition
EOF


cat >> /etc/man_db.conf << "EOF" &&
# Begin Java addition
MANDATORY_MANPATH     /opt/jdk/man
MANPATH_MAP           /opt/jdk/bin     /opt/jdk/man
MANDB_MAP             /opt/jdk/man     /var/cache/man/jdk
# End Java addition
EOF

mandb -c /opt/jdk/man

To test the man pages are correctly installed, issue source /etc/profile and man java to display the respective man page.

Install or update the JRE Certificate Authority Certificates (cacerts) file

Use the following procedure to check if the cacerts file was successfully installed during the OpenJDK build. Also, if the Certificate Authority Certificates have been updated, the following instructions will generate a new JRE cacerts file. First, check if the cacerts have been successfully installed:

cd /opt/jdk
bin/keytool -list -keystore jre/lib/security/cacerts

At the prompt "Enter keystore password:", press the "Enter" key if there is no keystore password defined. If the cacerts were installed correctly, you will see a list of the certificates with related information for each one. If not, you need to manually install them. First, generate the mkcacerts script as the root user:

cat > /opt/jdk/bin/mkcacerts << "EOF"
#!/bin/sh
# Simple script to extract x509 certificates and create a JRE cacerts file.

function get_args()
    {
        if test -z "${1}" ; then
            showhelp
            exit 1
        fi

        while test -n "${1}" ; do
            case "${1}" in
                -f | --cafile)
                    check_arg $1 $2
                    CAFILE="${2}"
                    shift 2
                    ;;
                -d | --cadir)
                    check_arg $1 $2
                    CADIR="${2}"
                    shift 2
                    ;;
                -o | --outfile)
                    check_arg $1 $2
                    OUTFILE="${2}"
                    shift 2
                    ;;
                -k | --keytool)
                    check_arg $1 $2
                    KEYTOOL="${2}"
                    shift 2
                    ;;
                -s | --openssl)
                    check_arg $1 $2
                    OPENSSL="${2}"
                    shift 2
                    ;;
                -h | --help)
                    showhelp
                    exit 0
                    ;;
                *)
                    showhelp
                    exit 1
                    ;;
            esac
        done
    }

function check_arg()
    {
        echo "${2}" | grep -v "^-" > /dev/null
        if [ -z "$?" -o ! -n "$2" ]; then
            echo "Error:  $1 requires a valid argument."
            exit 1
        fi
    }

# The date binary is not reliable on 32bit systems for dates after 2038
function mydate()
    {
        local y=$( echo $1 | cut -d" " -f4 )
        local M=$( echo $1 | cut -d" " -f1 )
        local d=$( echo $1 | cut -d" " -f2 )
        local m

        if [ ${d} -lt 10 ]; then d="0${d}"; fi

        case $M in
            Jan) m="01";;
            Feb) m="02";;
            Mar) m="03";;
            Apr) m="04";;
            May) m="05";;
            Jun) m="06";;
            Jul) m="07";;
            Aug) m="08";;
            Sep) m="09";;
            Oct) m="10";;
            Nov) m="11";;
            Dec) m="12";;
        esac

        certdate="${y}${m}${d}"
    }

function showhelp()
    {
        echo "`basename ${0}` creates a valid cacerts file for use with IcedTea."
        echo ""
        echo "        -f  --cafile        The path to a file containing PEM formated CA"
        echo "                            certificates.  May not be used with -d/--cadir."
        echo "        -d  --cadir         The path to a diectory of PEM formatted CA"
        echo "                            certificates.  May not be used with -f/--cafile."
        echo "        -o  --outfile       The path to the output file."
        echo ""
        echo "        -k  --keytool       The path to the java keytool utility."
        echo ""
        echo "        -s  --openssl       The path to the openssl utility."
        echo ""
        echo "        -h  --help          Show this help message and exit."
        echo ""
        echo ""
    }

# Initialize empty variables so that the shell does not pollute the script
CAFILE=""
CADIR=""
OUTFILE=""
OPENSSL=""
KEYTOOL=""
certdate=""
date=""
today=$( date +%Y%m%d )

# Process command line arguments
get_args ${@}

# Handle common errors
if test "${CAFILE}x" == "x" -a "${CADIR}x" == "x" ; then
    echo "ERROR!  You must provide an x509 certificate store!"
    echo "\'$(basename ${0}) --help\' for more info."
    echo ""
    exit 1
fi

if test "${CAFILE}x" != "x" -a "${CADIR}x" != "x" ; then
    echo "ERROR!  You cannot provide two x509 certificate stores!"
    echo "\'$(basename ${0}) --help\' for more info."
    echo ""
    exit 1
fi

if test "${KEYTOOL}x" == "x" ; then
    echo "ERROR!  You must provide a valid keytool program!"
    echo "\'$(basename ${0}) --help\' for more info."
    echo ""
    exit 1
fi

if test "${OPENSSL}x" == "x" ; then
    echo "ERROR!  You must provide a valid path to openssl!"
    echo "\'$(basename ${0}) --help\' for more info."
    echo ""
    exit 1
fi

if test "${OUTFILE}x" == "x" ; then
    echo "ERROR!  You must provide a valid output file!"
    echo "\'$(basename ${0}) --help\' for more info."
    echo ""
    exit 1
fi

# Get on with the work

# If using a CAFILE, split it into individual files in a temp directory
if test "${CAFILE}x" != "x" ; then
    TEMPDIR=`mktemp -d`
    CADIR="${TEMPDIR}"

    # Get a list of staring lines for each cert
    CERTLIST=`grep -n "^-----BEGIN" "${CAFILE}" | cut -d ":" -f 1`

    # Get a list of ending lines for each cert
    ENDCERTLIST=`grep -n "^-----END" "${CAFILE}" | cut -d ":" -f 1`

    # Start a loop
    for certbegin in `echo "${CERTLIST}"` ; do
        for certend in `echo "${ENDCERTLIST}"` ; do
            if test "${certend}" -gt "${certbegin}"; then
                break
            fi
        done
        sed -n "${certbegin},${certend}p" "${CAFILE}" > "${CADIR}/${certbegin}.pem"
        keyhash=`${OPENSSL} x509 -noout -in "${CADIR}/${certbegin}.pem" -hash`
        echo "Generated PEM file with hash:  ${keyhash}."
    done
fi

# Write the output file
for cert in `find "${CADIR}" -type f -name "*.pem" -o -name "*.crt"`
do

    # Make sure the certificate date is valid...
    date=$( ${OPENSSL} x509 -enddate -in "${cert}" -noout | sed 's/^notAfter=//' )
    mydate "${date}"
    if test "${certdate}" -lt "${today}" ; then
        echo "${cert} expired on ${certdate}! Skipping..."
        unset date certdate
        continue
    fi
    unset date certdate
    ls "${cert}"
    tempfile=`mktemp`
    certbegin=`grep -n "^-----BEGIN" "${cert}" | cut -d ":" -f 1`
    certend=`grep -n "^-----END" "${cert}" | cut -d ":" -f 1`
    sed -n "${certbegin},${certend}p" "${cert}" > "${tempfile}"
    echo yes | env LC_ALL=C "${KEYTOOL}" -import -alias `basename "${cert}"` -keystore \
                   "${OUTFILE}" -storepass 'changeit' -file "${tempfile}"
    rm "${tempfile}"
done

if test "${TEMPDIR}x" != "x" ; then
    rm -rf "${TEMPDIR}"
fi
exit 0
EOF

chmod -c 0755 /opt/jdk/bin/mkcacerts

Note

Doing a very large copy/paste directly to a terminal may result in a corrupted file. Copying to an editor may overcome this issue.

If you need to generate a cacerts file, and there is already one in /opt/jdk/jre/lib/security, it is better to make a backup. Then, you can create a new one, as the root user:

/opt/jdk/bin/mkcacerts -d "/etc/ssl/certs/"  -k "/opt/jdk/bin/keytool" \
                       -s "/usr/bin/openssl" -o "/opt/jdk/jre/lib/security/cacerts"