javax.jms.MessageFormatException: [C4017]: Invalid message format.

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  • Persistence entities not serializable
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    • javax.jms.MessageFormatException: [C4017]: Invalid message format. at com.sun.messaging.jmq.jmsclient.MapMessageImpl.checkValidObjectType(MapMessageImpl.java:653) at com.sun.messaging.jmq.jmsclient.MapMessageImpl.setObject(MapMessageImpl.java:632) at buyer.Main.sendCart(Main.java:287)
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