问题
when I invoke list page I get this error ,also program running but some progresses arent working and redirect debug page ,I couldnt fix it ,anybody know this error,what does it mean
INFO: EJB5018: An exception was thrown during an ejb invocation on [EjbSynchronizations] INFO: javax.ejb.EJBException: nested exception is: java.lang.IllegalStateException: EJB is already associated with an incomplete transaction java.lang.IllegalStateException: EJB is already associated with an incomplete transaction com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98) //lots of useless error info
回答1:
The error means that two threads are attempting to call the same stateful session bean instance. A stateful session bean instance can only be associated with a single transaction (which are per thread) at a time. Without more information, it's impossible to know what is wrong with the application to make this happen. One possibility is that the application injects a stateful session bean into a servlet, so all requests on all threads are attempting to use the same instance. Either each request should create its own instance of the bean, or the bean should actually be stateless.
来源：https://stackoverflow.com/questions/4385731/exception-ejb-is-already-associated-with-an-incomplete-transaction