NPE on EntityManager close()
49
What is a NullPointerException, and how do I fix it?
143748
Why not use an IoC container to resolve dependencies for entities/business objects?
38443
ExecuteReader requires an open and available Connection. The connection's current state is closed
36440
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
11898
What happens if I don't close a System.Diagnostics.Process in my C# console app?
108602
Hibernate SessionFactory vs. JPA EntityManagerFactory
81652
What is the right way to close apps in Android?
78489
How can I replace function of shutdown button with hibernate?
74391
Java Finalize method call when close the application
35651
java.lang.IllegalStateException: Scanner closed
80631
NullPointerException but compiling?
103079
Reading a Set in PostLoad on JPA/Hibernate
108256
Why do the JPA2 MetaModel get generated with volatile members?
60854
Close SqlConnection in the Finally when using "Using"
144631
How to bypass node_access when using EntityFieldQuery?
90945
app engine datastore auto-clears every time project runs
106245
hibernate: LazyInitializationException: could not initialize proxy