Glassfish error when producing JSON

Question

I developed an Android app and now I\'m starting with its external DB and its server, the communication is performed by RESTful web services.

This Android aplication

Answer 1

Jack's answer is really helpful.
It pinpoints the problem and was useful when there was no patch.

But I suggest instead of editing the jar, since the bug is corrected in 2.6.1, to download it at : org.eclipse.persistence.moxy-2.6.1 from MVNRepository

OR get the latest version from MVNRepository: https://mvnrepository.com/artifact/org.eclipse.persistence/org.eclipse.persistence.moxy

and replace it.
Don't forget to close and reopen you IDE.