help needed on Unsupported error

Hello friends,
while in teh Bean creation wizard,File->new->Enterprise bean->edit->adding directory structure containing classes->ok->Next->

java.lang.UnsupportedClassVersionError:Could not add headfirst\Advice.class
(Unsupported major.minor version 49.0)

Why am i getting this? Please take a look at the paths i have set.Does this matter here in the exception i am getting?

CLASSPATH: C:\java\J2SESDK1.4;c:\java\j2sdk 5.0\lib;C:\java\J2EESDK1.3.1\lib\j2ee.jar;.;

JAVA_HOME: C:\java\J2SESDK1.4

J2EE_HOME: C:\java\J2EESDK1.3.1

PATH: C:\java\J2SESDK1.4;c:\java\j2sdk 5.0\bin;C:\java\J2EE SDK 1.3.1\bin;C:\java\J2EESDK1.3.1;.;

Please I am stuck in between.NEed your help friends.

Praveena
SCJP 1.5,SCWCD 1.4, UML-486

Hello Praveena ,
Use JDK 1.3 Version instead of 1.4. That is recommended for J2EE 1.3

Or

Move to give EJB 3.0 exam

with JEE5 & JDK 1.5

Regards,
Shivani
[ July 25, 2007: Message edited by: Shivani Chandna ]

Thanks Shivani,
AFter your reply, i went through the installation instructions for jdk1.3.1 for Windows, and found : instead of updating the path variable we can directly compile like C:> \jdk1.3.1_<version number>\bin\javac MyClass.java
and I tried jdk 1.4 here.
And it worked..that means i have to correct my PATH,CLASSPATH variables.

1.4 seems to work fine with j2ee.
As HF EJB has mentioned at the start, that 1.4 would not give any problems as such..But ofcourse in the future if i may get some problems i shall switch to 1.3

Thanks Shivani..your reply helped me a lot..

Praveena.

And you should avoid setting different SDKs in your PATH and CLASSPATH. You can have as many SDKs as you want in your machine, but set both PATH and CLASSPATH to use only one of them.