Attempting to execute an operation on a closed EntityManager (OracleDB, ojdbc8) - Technical Discussion - Payara Forum
1.3.3-SNAPSHOT Attempting to execute an operation on a closed EntityManager. · Issue #1397 · mitreid-connect/OpenID-Connect-Java-Spring-Server · GitHub
![mysql - java.lang.IllegalStateException: Attempting to execute an operation on a closed EntityManagerFactory - Stack Overflow mysql - java.lang.IllegalStateException: Attempting to execute an operation on a closed EntityManagerFactory - Stack Overflow](https://i.stack.imgur.com/GydCt.jpg)