PATH do Java

[debopen <debopen@gmail.com>]

porque quando estou no terminal do kde
e digito java ou javac diz comando not found
o que tem de errado o meu PATH do Java

# /etc/profile: system-wide .profile file for the Bourne shell (sh(1))
# and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).

if [ "`id -u`" -eq 0 ]; then
 
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11"
else
 PATH="/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games"
fi

if [ "$PS1" ]; then
 if [ "$BASH" ]; then
   PS1='\u@\h:\w\$ '
 else
   if [ "`id -u`" -eq 0 ]; then
     PS1='# '
   else
     PS1='$ '
   fi
 fi
fi

export PATH

JAVA_HOME="/usr/lib/java"
export JAVA_HOME
PATH="$PATH:$JAVA_HOME/bin"
export PATH
CLASSPATH="$JAVA_HOME/lib"
export CLASSPATH
MANPATH="$MANPATH:$JAVA_HOME/man"
export MANPATH

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