RHEL 5下如何安装jre？

各位大侠，我下载了jre-6u22-linux-i586.bin，参照安装说明，配置完环境变量，现在执行java -version，仍提示找不到java命令。
jre安装在/usr/local/java下，执行jre-6u22-linux-i586.bin后生成的目录是：
[root@localhost java]# ll
总计 20772
drwxr-xr-x 8 root root 4096 10-16 13:43 jre1.6.0_22
-rwxrwxrwx 1 root root 21226886 10-16 13:35 jre-6u22-linux-i586.bin

下面是/etc/profile的配置，大家帮我看看，哪里出问题了？谢谢！！！
# /etc/profile

# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc

pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}

# ksh workaround
if [ -z "$EUID" -a -x /usr/bin/id ]; then
EUID=`id -u`
UID=`id -ru`
fi

# Path manipulation
if [ "$EUID" = "0" ]; then
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
fi

# No core files by default
ulimit -S -c 0 > /dev/null 2>&1

if [ -x /usr/bin/id ]; then
USER="`id -un`"
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
fi

HOSTNAME=`/bin/hostname`
HISTSIZE=1000

if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then
INPUTRC=/etc/inputrc
fi
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC

for i in /etc/profile.d/*.sh ; do
if [ -r "$i" ]; then
. $i
fi
done

unset i
unset pathmunge

JAVA_HOME=/usr/local/java/jrel.6.0_22
JAVA_BIN=/usr/local/java/jrel.6.0_22/bin
export JAVA_HOME JAVA_BIN
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我后来又在/.bashrc中也配置了，可情况一样，重启系统后也一样。
# .bashrc

# User specific aliases and functions

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

# Source global definitions
if [ -f /etc/bashrc ]; then
. /etc/bashrc
fi

JAVA_HOME=/usr/local/java/jrel.6.0_22
JAVA_BIN=/usr/local/java/jrel.6.0_22/bin
export JAVA_HOME JAVA_BIN