I've been trying to figure out how to learn J2EE on linux for awhile now. I need to setup an environment that I can use. Right now I am running RH 9.0, and I downloaded and installed the J2SE SDK, J2EE SDK, and ANT. But how do I setup an environment to test code. When I installed the J2SE 1.4.1_02 SDK it wouldn't work with the J2EE 1.4 SDK...but I'm not willing to downgrade my J2SE SDK.

Has anybody else run into problems getting the J2EE -verbose command to run the server? I am just having a really hard time figuring out how to get all this going.

I am so desparate I think I might Win2k's IIS server, but I'm not sure if that server lets me run Servlets or JSP. Can somebody give me a hand in setting up my J2EE environment and server?

Jakarta Tomcat is good for running jsp's and servlets.

and this link may be of help:
http://www.blackdown.org/java-linux/java2-status/

Do you know anything about the J2EE SDK? Namely the server that comes with that Development Kit, is giving me trouble, as well as the ANT make. Also I don't know what I'm really getting from teh J2EE SDK server, but I was hoping it would be an all in one, easier to use server. Do you know anything about that?

do you mean cloudscape? is that the server that comes with j2ee? I haven't used it much... all the developing I've done has been tested and released on the Tomcat application server. If you want to post your error messages I'd be happy to help you in any way I can though.

Well the error is as follows
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:175)
at com.sun.enterprise.server.J2EEServer.main(J2EEServer.java:972)
Caused by: java.lang.NullPointerException
at java.net.InetAddress.cacheAddress(InetAddress.java:648)
at java.net.InetAddress.cacheAddress(InetAddress.java:633)
at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1016)
at java.net.InetAddress.getLocalHost(InetAddress.java:1125)
at com.sun.enterprise.util.Utility.getLocalHost(Utility.java:56)
at com.sun.enterprise.repository.ConfigurationImpl.<clinit>(ConfigurationImpl.java:18)

I ran J2ee -verbose...my .bashrc looks like this
alias cp='cp -i'
alias mv='mv -i'
alias rem='rem -i'

# Setting environment variables
J2EE_HOME=/home/wmui/java/j2sdkee1.3.1
JAVA_HOME=/home/wmui/java/j2sdk1.4.1_02
ANT_HOME=/home/wmui/java/jakarta-ant-1.3
J=$HOME/java/java_src
C=$HOME/C++/c++_src

# Setting Path
PATH=".:$JAVA_HOME/bin:$J2EE_HOME/bin:$ANT_HOME/bin:$PATH"
export PATH

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

What did i do wrong...?

this is the error you get when you execute what command?

null pointer exception says that if all you're doing is trying to start the server and not starting your own code then sun messed up somewhere. did a quick google... nothing obvious came up. I'll do some more searching here in a bit.

this is the error when I ran J2EE -verbose.

When I get home tonight I'll put j2ee on my machine and let you know the results.

deadseasquirrel, I haven't forgotten about you. I'm afraid that the original plans are not gonna be able to happen. Before I left work today my boss told me I have to go to jersey till Friday. So I'm running around doin laundry and payin bills and what not. I'm very sorry but I'm not gonna be able to look at this until friday... I can try it on my laptop at the hotel... but I can tell you right now I'm pretty sure its gonna work on that one. I had better chances of recreating the error on my desktop as I built that one from scratch... so if its something wierd like a missing library, etc I won't know until friday and I can test it on my desktop.

again, I'm very sorry.
best of luck,
jpbarto

no problem...let me know if you come up with anything. It may be some sort of mismatch between the J2EE SDK, and the J2SE SDK versions, on top of the fact that some J2EE SDK wasn't written specifically for RH 9.0

also remove gcj using the package manager in redhat