Cygwin 1.5.9: jboss-4.0.0DR4: jmx-console: Unable to compile

I downloaded jboss-4.0.0DR4 to my Cygwin 1.5.9 (running
on Windows XP Pro). I previously had installed J2SE
1.5.0beta. When I run the run.sh script the server
starts fine but when I access the jmx console with
http://localhost:8080/jmx-console I get this error:
--------------------------------------------------------------------
HTTP Status 500 -

type Exception report

message

description The server encountered an internal error ()
that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile
class for JSP

No Java compiler was found to compile the generated
source for the JSP.
This can usually be solved by copying manually
$JAVA_HOME/lib/tools.jar from the JDK
to the common/lib directory of the Tomcat server,
followed by a Tomcat restart.
If using an alternate Java compiler, please check its
installation and access path.

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:83)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:315)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:406)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:463)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:442)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:430)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:274)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)

note The full stack trace of the root cause is
available in the Apache Tomcat/5.0.25 logs.
Apache Tomcat/5.0.25
--------------------------------------------------------------------

Log shows same error.

The error is saying to copy the tools.jar into
common/lib directory. I didn't find a common/lib so I
tried copying tools.jar to server/default/lib and then
server/all/lib. Next tried moving tools.jar to
server/default/deploy/jbossweb-tomcat50.sar and
restarting. None of these worked. Still getting same error.

Here are the startup values:
JBoss Bootstrap Environment

JBOSS_HOME: C:\cygwin\usr\local\jboss-4.0.0DR4

JAVA: /cygdrive/c/PROGRA~1/java/j2sdk1.5.0/bin/java

JAVA_OPTS: -server -Xms128m -Xmx128m -Dprogram.name=run.sh

CLASSPATH:
C:\cygwin\usr\local\jboss-4.0.0DR4\bin\run.jar;c:\PROGRA~1\java\j2sdk1.5.0\lib\tools.jar