Help me with a Simple HelloWorld.jsp

I get this error when compiling a javax.servlet.ServletException: java.lang.NullPointerException
Please help!!!

need more info

Using IIS 4.0 and JRun 2.3
It works if I place it under Jrun/jsm-default/services/jse/servlets/jsp however if I place it under inetpub/wwwroot/anydir/helloworld.jsp it will not compile. What is required in the classpath to compile a jsp.

servlet.jar must be in your classpath - its from the JSDK.
I haven't used 2.3 for a while now - I am trying to remember how it worked - I am so used to new api structure w/JRun 3.0. I know you could run jsps out of the web server directory (I think you still can) but I don't remember if there was something extra to do. Somewhere in the 2.3 configuration applet (I think it was on the Java tab) there is a place to enter classpath information. It sounds like its finding the servlet classes if its giving you a ServletException error. Where are you seeing this error? in the browser?
[This message has been edited by Geoff Tate (edited March 07, 2001).]

It is d:/JRun/lib/sun/jsdk2.1/servlet.jar;
The entire classpath is as follows:
d:/JRun/classes;
d:/JRun/classes/jsafe.jar;
d:/JRun/classes/FTPProtocol.jar;
d:/JRun/jsm-default/classes;
d:/JRun/lib/apache/xerces_1_0_3.jar;
d:/JRun/lib/apache/xalan_1_0_0.jar;
d:/JRun/lib/sun/jsdk2.1/servlet.jar;
d:/JRun/lib/sun/jdk1.2.2/rt.jar;
d:/JRun/lib/sun/jdk1.2.2/i18n.jar;
d:/JRun/lib/sun/jdk1.2.2/tools.jar;
d:/JRun/lib/jrun.jar;
d:/JRun/lib/jrunadmin/jrunadmin.jar;
d:/JRun/lib/jrunadmin/swing.jar;
d:/JRun/lib/jsp.jar;
d:/JRun/classes/mail.jar;
d:/JRun/classes/activation.jar;
d:/JRun/classes/pop3.jar;
d:/JRun/classes/Smtp.jar;
d:/oracle/ora81/jdbc/lib/classes12.zip;
d:/oracle/ora81/jdbc/lib/nls_charset12.zip;
d:/JRun/classes/ChartWorks.jar;
d:/JRun/lib/sun/jsse1.0.2/jsse.jar;
d:/JRun/lib/sun/jsse1.0.2/jnet.jar;
d:/JRun/lib/sun/jsse1.0.2/jcert.jar;
d:/ibm/db2/java/db2java.zip;
d:/ibm/db2/java/sqlj.zip;
d:/ibm/db2/java/runtime.zip;
d:/JRun/lib/xt.jar;

where are you seeing the error?

I see the error in the error.Log file

Its hard to say whats causing it without seeing the code. Do you see anything in the browser at all.

can u post the complete code? I think a helloworld.jsp shouldn't be to lengthy.

It's pure html? Are there anyother configuration issues I can look at?

Here is the copy of the code.
<HTML>
<HEAD>
<TITLE>
myFirstJsp
</TITLE>
</HEAD>
<BODY>
<H1>
JBuilder Generated JSP
</H1>
</BODY>
</HTML>

hmmmm works ok for me (Jrun 3.0).
have you taken a look at the JRun-generated .java file? maybe you can get a clue from there as to what is null. I was in the middle of a big project when I had to convert from JRun 2.3 to 3.0 and there were some major differences.

The funny thing is the .java file is blank however the xml file looks good. Here is the copy of the xml file.
<?xml version="1.0" ?>
<jsp:root xmlns:jsp="http://java.sun.com/products/jsp/dtd/jsp_1_0.dtd" package="jsp.calcs" name="index"><![CDATA[<HTML>
<HEAD>
<TITLE>
myFirstJsp
</TITLE>
</HEAD>
<BODY>
<H1>
JBuilder Generated JSP
</H1>
</BODY>
</HTML>
]]></jsp:root>

So it runs fine out of the Jrun structure but not out of the inetpub structure? You may want to post this to the allaire site, although they may never answer it. I just can't recall if there was anything additional that had to be done in the 2.3 configuration. The only thing I remember was having to configure that classpath. You should probably upgrade to the new version since it supports the WAR file structure now prescribed by the servlet API. I wish I could be more help.

Thanks anyway.

You should check the ISAPI filter. This filter will pass JSP & java from the INETPUB world and pass it to the JRUN environment.