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Pre-detach loading: retrieval by navigation not working in if statement

project run config for deployment to Glassfish4.1: I tried both relative and absolute paths

Insert time increases as db grows.

; then 11 seconds and so on. Should I change my config in some way to get more stable insertion time

Cannot cast com.objectdb.jpa.Provider to PersistenceProvider

Hi! I'm trying to get ObjectDB 2.5.1_1 work with stable Glassfish 4 in a Java EE 7 NetBeans project. objectdb.jar is added into GF's classpath (domains\domain1\lib\ext folder). Any help, please?... Thanks! Here it is the persistence.xml config: <?xml version="1.0" encoding="UTF-8"?> <persistence

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