Axis2 1.5 + EclipseLink + Tomcat 6 = Exceptions, but only sometimes -------------------------------------------------------------------
Key: AXIS2-4389 URL: https://issues.apache.org/jira/browse/AXIS2-4389 Project: Axis 2.0 (Axis2) Issue Type: Bug Affects Versions: 1.5 Environment: Windows XP SP3/Ubuntu 9.04 64bit server, Tomcat 6.0.x, Eclipse 3.4.2, Axis 1.5 Reporter: Greg Logan Priority: Blocker >From the mailing list: I'm having this weird problem when I try and use certain Axis2 web services, but not others. What I'm trying to do is make a call, and have the service return data from the DB using JPA queries via Eclipselink. Unfortunately Axis appears to be throwing NullPointerExceptions for some of the calls and I have no idea why. I've attached the full exception text, but the top few lines are thus: [ERROR] java.lang.NullPointerException org.apache.axiom.om.OMException: java.lang.NullPointerException at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:260) at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:335) which is generated in response to the function: public Act[] getAllScenes(Common common) throws Exception { //get the entity manager and begin a transaction EntityManager em = emf.createEntityManager(); //Find the appropriate video Episode ep = em.find(Episode.class, common.getVideoid()); ... //Get the list of acts in the video List<Act> results = t.getScenes(); if (results == null) { logger.debug("Error: No list of acts found"); return null; } //Sort them into the appropriate order and return Act[] ary = new Act[results.size()]; results.toArray(ary); Arrays.sort(ary); em.close(); return ary; } I've tried playing the debug-statement game, and I found that the line throwing the exception is sometime *after* the return statement - everything else is valid, including the data being pulled from the DB. On the flip side, I have a very similar function in a different service (but still the same Eclipse project, persistence unit, build script and deployed WAR file) which works fine for no apparent reason. Is there something here that I'm doing wrong, or anything that stands out? I've been blocked on this for a couple of days now and I would really like to be able to make some progress again :) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.