Here is the class with some code removed as I think it's not relevant.
When entityManager.merge is uncommented, the above exception ocurs.
@Stateless
| @Name("importRunAction")
| public class ImportRunAction implements ImportRunActionInterface {
|
| @In
| EntityManager entityManager;
|
| public ImportRunAction() {
| }
|
| @Override
| public void run(Import importRule, User user) {
|
| /*
| * Asynchronous and ongoing task progress reporting
| */
| AsynchronousImportController aip =
(AsynchronousImportController) Component
| .getInstance("asynchronousImportController");
| Progress progress = aip.getProgress(importRule);
|
| try {
|
| [...]
| importRunEvent.setMessage("Success");
| importRunEvent.end();
| entityManager.persist(importRunEvent);
| }
|
| } catch (Exception e) {
| FacesMessages.instance().add(e.getMessage());
| e.printStackTrace();
| aip.remove(importRule);
| }
|
| aip.remove(importRule);
|
| datasource.setBookCount(bookCount);
|
| // entityManager.merge(datasource);
|
| System.out.println("end run");
| }
| }
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