graph.jsp exception

Hi,
On alpha arch- debian-unstable , 2.6.10 kernel, there is no j2sdk port 
to this arch, using sablevm.org
java -version:
SableVM version 1.11.3
- compile date and time: 2005-03-31 19:12:02 UTC
- gcc version: 3.3.5 (Debian 1:3.3.5-8)
- 'real life brokenness' features enabled
- signal based exception detection
- copying garbage collection
- bidirectional object layout
- direct-threaded interpreter
javac -version:
Jikes Compiler - Version 1.22 - 3 October 2004
Copyright (C) IBM Corporation 1997-2003, 2004.
- Licensed Materials - Program Property of IBM - All Rights Reserved.
Originally written by Philippe Charles and David Shields of IBM Research,
Jikes is now maintained and refined by the Jikes Project at:
<http://ibm.com/developerworks/opensource/jikes>
Please consult this URL for more information and for reporting problems.
------- ------
with jakarta-tomcat-5.0.19, sh catalina.sh run starts server all is 
well, my application uses mysql-connector for database use, i have one 
problem with graphing encoder -graph.jsp call to sun :
<jakarta log:>
[INFO] Http11Protocol - -Starting Coyote HTTP/1.1 on port 8080
[INFO] ChannelSocket - -JK2: ajp13 listening on 0.0.0.0/0.0.0.0:8009
[INFO] JkMain - -Jk running ID=0 time=3/307  
config=/home/mel/jakarta-tomcat-5.0.19/conf/jk2.p roperties
[INFO] Catalina - -Server startup in 100482 ms
[ERROR] Compiler - -Error compiling file: 
/home/mel/jakarta-tomcat-5.0.19/work/Catalina/localh 
ost/_//org/apache/jsp/prodGraph_jsp.java     [javac] Since compiler 
setting isn't classic or m odern,ignoring fork setting.
    [javac] Compiling 1 source file
    [javac] Since compiler setting isn't classic or modern,ignoring fork 
setting.

    [javac] Found 3 semantic errors compiling 
"/home/mel/jakarta-tomcat-5.0.19/work/Catalina/l 
ocalhost/_/org/apache/jsp/prodGraph_jsp.java":

    [javac]      9. import com.sun.image.codec.jpeg.*;
    [javac]                ^----------------------^
    [javac] *** Semantic Error: You need to modify your classpath, 
sourcepath, bootclasspath, and/or extdirs setup. Jikes could not find 
package "com.sun.image.codec.jpeg" in:
    [javac]                 /usr/local/share/sablevm-classpath
    [javac]                 
/usr/local/share/sablevm-classpath/libclasspath.jar
    [javac]                 /usr/local/share/sablevm-classpath/resources.jar
    [javac]                 
/home/mel/jakarta-tomcat-5.0.19/bin/bootstrap.jar
    [javac]                 
/home/mel/jakarta-tomcat-5.0.19/bin/commons-logging-api.jar
    [javac]                 /usr/local/lib/sablevm/jre/lib/rt.jar
......etc error continues.
any help welcome here -intuitively i know i need to a non-sun jpeg 
encoder (encoder_jpeg.java)?
Best -Mel