hi, i want to develop a Workflow prototype for my faculty at the TU Dresden, but i have a big problem. I want to send emails to different persons after completing tasks. i wrote two classes which handle the actions with the Javamail API. As a standalone application it works but if i put it in a ActionHandler Jboss said, that he couldn't find the javamail.default.providers int the database. Does anybody know how to solve this problem or is there another solution for sending emails. the stacktrace looks like:

Caused by: org.jbpm.JbpmException: couldn't get value for file 'META-INF/javamail.default.providers'
 at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:186)
 at org.jbpm.instantiation.ProcessClassLoader.getResourceAsStream(ProcessClassLoader.java:43)
 at java.lang.Class.getResourceAsStream(Class.java:1331)
 at javax.mail.Session$4.run(Session.java:1193)
 at java.security.AccessController.doPrivileged(Native Method)
 at javax.mail.Session.getResourceAsStream(Session.java:1190)
 at javax.mail.Session.loadResource(Session.java:1082)
 at javax.mail.Session.loadProviders(Session.java:889)
 at javax.mail.Session.<init>(Session.java:210)
 at javax.mail.Session.getDefaultInstance(Session.java:299)
 at com.sample.action.MailSend.sendMail(MailSend.java:38)
 at com.sample.action.MyActionHandler.execute(MyActionHandler.java:30)
 at org.jbpm.graph.def.Action.execute(Action.java:123)
 at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
 ... 68 more
Caused by: org.jbpm.JbpmException: file 'META-INF/javamail.default.providers' not found in db
 at org.jbpm.file.def.FileDefinition.getByteArray(FileDefinition.java:210)
 at org.jbpm.file.def.FileDefinition.getBytesFromDb(FileDefinition.java:202)
 at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:183)
 ... 81 more