Based off of https://github.com/flexiondotorg/oab-java6/, but just downloads the .bin or .tar.gz for you. RUN: wget -O ./get-java.sh https://gist.github.com/diginc/5732479/raw/d23f9c35844fde9be8e1d05855ae7044a07ec771/get-java.sh; chmod +x get-java.sh;

get-java.sh

#!/bin/bash

function usage() { echo "Allows scriptable downloading of official Java packages."; 
        echo -e "Options:\n  -7: use latest java 7 version\n  -v: specify version 6/7\n  -u: specify the update version #\n  -a: specify x64 or i586"; 
        exit 1;
}

# Defaults Opts
DESTINATION="./"
JAVA_VER=6
JAVA_UPD=45
JAVA_ARCH="x64"

# User Set Option overrides
OPTSTRING=7v:u:a:d:
while getopts ${OPTSTRING} OPT
do
    case ${OPT} in
        7) JAVA_VER=7
           JAVA_UPD=21;;
        v) JAVA_VER=$OPTARG;;
        u) JAVA_UPD=$OPTARG;;
        a) JAVA_ARCH=$OPTARG;;
        d) DESTINATION=$OPTARG;;
        \?) usage;;
        *) usage;;
    esac
done
shift "$(( $OPTIND - 1 ))"

# Required Variables
if [ "${JAVA_VER}" -eq 6 ]; then
    JAVA_EXT=.bin
else
    JAVA_EXT=.tar.gz
fi
JAVA_BIN="jdk-${JAVA_VER}u${JAVA_UPD}-linux-${JAVA_ARCH}${JAVA_EXT}"
COOKIES="oraclelicensejdk-${JAVA_VER}u${JAVA_UPD}-oth-JPR=accept-securebackup-cookie;gpw_e24=http://edelivery.oracle.com";

wget "http://www.oracle.com/technetwork/java/javase/downloads/index.html" -O /tmp/oab-index.html
DOWNLOAD_INDEX="$(egrep -o /technetwork/java/javase/downloads/jdk"$JAVA_VER(u$JAVA_UPD)?"-?downloads-[[:digit:]]+\\.html /tmp/oab-index.html | head -1)"
wget http://www.oracle.com/${DOWNLOAD_INDEX} -O /tmp/oab-download.html

DOWNLOAD_FOUND=`grep "jdk-${JAVA_VER}u${JAVA_UPD}-linux-${JAVA_ARCH}\." /tmp/oab-download.html`
if [ -z "${DOWNLOAD_FOUND}" ]; then
    echo " [x] Getting previous releases download page "
    if [ "${JAVA_VER}" -eq 6 ]; then
        wget http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase6-419409.html -O /tmp/oab-download.html 
    else
        wget http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase7-521261.html -O /tmp/oab-download.html
    fi
fi

DOWNLOAD_URL=`grep ${JAVA_BIN} /tmp/oab-download.html | cut -d'{' -f2 | cut -d',' -f3 | cut -d'"' -f4`
if [ -z "${DOWNLOAD_URL}" ]; then
    echo "No download found for ${JAVA_BIN}";
else 
    wget --no-check-certificate --header="Cookie: ${COOKIES}" -c "${DOWNLOAD_URL}" -O ${DESTINATION}${JAVA_BIN}
fi