HELP ME with process Java

[cmjhingeniero]

Hi

I'm using jBPM-4.2 with Tomcat and PostgreSQL. I have the following process, that the only thing it does is print a message Hello World. When I run an instance of the process I get the following error, and I want to know if some configuration or covered

URL: 'http://localhost:8080/gwt-console-server/rs/process/definition/Java-1/new_instance'
Action: 'org.jboss.bpm.console.client.process.StartNewInstanceAction'
Exception: 'class com.google.gwt.http.client.RequestException'
HTTP 500: Unknown error

Proceso:

<?xml version="1.0" encoding="UTF-8"?>
<process name="HolaMundo" xmlns="http://jbpm.org/4.0/jpdl">
 <start name="start1" g="81,123,48,48">
 <transition name="to java1" to="java1" g="-45,-18"/>
 </start>
 <java name="java1"
 class="com.procesos.holamundo.Mensaje"
 method="hola"
 g="170,122,92,52">
 <field name="mensaje"><string value="HOLA MUNDO"/></field>
 <arg><string value="jBPM"/></arg>
 <transition name="to end1" to="end1" g="-42,-18"/>
 </java>
 <end name="end1" g="304,123,48,48"/>
</process>

Gracias

[sebastian.s]

Wrong forum. Use the users' forum for this. And before posting please read this post:

http://www.jboss.org/index.html?module=bb&op=viewtopic&t=158610

Furthermore: You told us you are using jBPM 4.2 but your process definition references the 4.0-schema. Please check if you are not mixing up things.

[cmjhingeniero]

Modify the schema of the process to 4.2, which is what I'm using but the error persists

Thanks

[heiko.braun]

take a look at the tomcat server log. there should be an explanation.