Error accessing Application Server Control Console

I just downloaded oc4j_extended_101330.zip and installed it at
/u01/app/oracle/oracle/product/10.2.0/oc4j
I then ran the following commands:
export ORACLE_HOME=/u01/app/oracle/oracle/product/10.2.0/oc4j
export J2EE_HOME=$ORACLE_HOME/j2ee/home
export JAVA_HOME=/u01/app/oracle/oracle/product/10.2.0/db_1/jdk
export PATH=$JAVA_HOME/bin:$PATH
java -version
java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)
cd $J2EE_HOME
java -jar jazn.jar -activateadmin <password>
cd bin
./oc4j -start
Once the server was up and running I went to http://localhost:8888 and saw the ocj4 home page. Then I tried to access the Application Server Control Console at http://localhost:8888/em and received an internal server error 500. The logs reported this exception:
08/02/20 13:38:59.807 ascontrol: Error initializing servlet
java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
at java.awt.Font.initializeFont(Font.java:308)
at java.awt.Font.<init>(Font.java:344)
at oracle.sysman.ias.studio.app.StudioConsole.loadFont(StudioConsole.java:292)
at oracle.sysman.ias.studio.app.StudioConsole.init(StudioConsole.java:107)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.loadServlet(HttpApplication.java:2371)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4824)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4748)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:2971)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:741)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:534)
I believe I've followed the installation and startup directions correctly. Any thoughts on what I might have done wrong?
Thanks

Hi,
It works with jdk 1.5 corect. With java 1.4.2 try to run oc4j using this command:
OC4J_JVM_ARGS=-Djava.awt.headless=true ./oc4j -start
Regards,
Tomas

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