Huisheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "AttachmentTest failure" To view the discussion, visit: http://community.jboss.org/message/539381#539381 -------------------------------------------------------------- Hi Maciej,   When I change JDK from 1.5 to 1.6, then the testcase passed.  And I find there was javax.activation package in the rt.jar of JDK 1.6.  I decompile the ObjectDataHandler.class to ObjectDataHandler.java,  and saw its content is as same as activation-1.1.1.jar.  It means that the JDK 1.6 included a activation-1.1.1.jar.  So if someone want to send mail with JDK1.5, he must use activation-1.1.1.jar.   So If Alejandro could modify the pom.xml and change activation.jar from 1.1 to 1.1.1.  It will be very appreciate. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/539381#539381] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]