Hello,
My case is:
1. Find an entity and close the context.
2. Update it with user input.
3. Create a new EntityManager and try to merge it into new context.
Then the following exception was thrown:
<openjpa-1.2.1-r752877:753278 nonfatal user error>
org.apache.openjpa.persistence.InvalidStateException: The generated
value processing detected an existing value assigned to this field:
com.XXX.bean.Policy.id. This existing value was either provided via
an initializer or by calling the setter method. You either need to
remove the @GeneratedValue annotation or modify the code to remove the
initializer processing.
org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:483)
org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:463)
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.assignObjectId(JDBCStoreManager.java:744)
org.apache.openjpa.kernel.DelegatingStoreManager.assignObjectId(DelegatingStoreManager.java:134)
org.apache.openjpa.kernel.DelegatingStoreManager.assignObjectId(DelegatingStoreManager.java:134)
org.apache.openjpa.kernel.StateManagerImpl.assignObjectId(StateManagerImpl.java:520)
org.apache.openjpa.kernel.StateManagerImpl.preFlush(StateManagerImpl.java:2824)
org.apache.openjpa.kernel.PNewState.beforeFlush(PNewState.java:39)
org.apache.openjpa.kernel.StateManagerImpl.beforeFlush(StateManagerImpl.java:960)
org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1948)
org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:1908)
org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1826)
org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1350)
org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:877)
org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:512)
com.XXX.dao.DAOContainer.commitTransaction(DAOContainer.java:195)
com.XXX.policy.PolicyServiceImpl.update(PolicyServiceImpl.java:272)
com.XXX.ds.ServletIndex.doGet(ServletIndex.java:78)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
What's the root cause of this exception?
Thanks!
Regards,
Yu Wang
