Error java.lang.IllegalArgumentException: An instance of a null PK has been incorrectly provided for this find operation

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Create a java application that uses jpa and works correctly. Then create an executable with the Launch4j and later an installer with Inno Setup. I install in the machine where I made the development and it works. when wanting to install it in another machine, the application runs, brings data from the database, validates the entries, but at the time of recording, throws this error. Any idea what it could be. At some point I assumed that a library would fail, but it would not connect or bring data if it were.

thank you very much

    
asked by Juan Jose Castro 22.05.2018 в 16:49
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