jsp compiling error

[roman0013]

hi!
i've problems to get my helloWorld .jsp to work...
i deployed a webapp test.war and opened http://myserver:8080/test2/helloWorld.jsp.
the result is an internal server exception.

i'm using jboss 2.4.4 with tomcat 4.0.1.

thanx for help!

exception
javax.servlet.ServletException: sun/tools/javac/Main
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:484)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
...

root cause
java.lang.NoClassDefFoundError: sun/tools/javac/Main
at org.apache.jasper.compiler.SunJavaCompiler.compile(SunJavaCompiler.java:128)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:271)
at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:546)
...

[roman0013]

i copied tools.jar from jdk/lib to jboss/lib/ext and now it works :)

[crozierb]

This problem is caused by not settings the JAVA_HOME
environment variable. As soon as you set it, the error
goes away.