error during the installation SDK 6

Dear Members,
this java already install in my machine

[root@maxdmail]$ uname -a
SunOS maxdmail.com 5.10 Generic_139556-08 i86pc i386 i86pc

[root@maxdmail]$ java -version
java version "1.5.0_17"
Java(TM) Platform, Standard Edition for Business (build 1.5.0_17-b04)
Java HotSpot(TM) Client VM (build 1.5.0_17-b04, mixed mode, sharing)

i download Java EE 6 fro unix x86 from this link

http://java.sun.com/javaee/downloads/index.jsp

when i try to install i got this error

[root@maxdmail]$ ./java_ee_sdk-6-unix.sh

Could not locate a suitable Java runtime.
Please ensure that you have Java 6 or newer installed on your system
and accessible in your PATH or by setting JAVA_HOME
[root@maxdmail]$

i am try to set JAVA_HOME PATH using this and i got the same error also

export JAVA_HOME=/data/java_hoe

what can i do
Best Regards
masrawy

Checked the installation notes:

http://java.sun.com/javaee/sdk/javaee6sdk_install.jsp

Ensure that the required JDK software is installed on your system and that the JAVA_HOME environment variable points to the JDK installation directory, not the Java Runtime Environment (JRE) software. 

Check JAVA_HOME variable. Also make sure JAVA is in path

$ echo $PATH

which has java at : /where/ever/you/install/java/bin/java