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I am using JPA, MySQL and GlassFish in a simple java web servlet netbeans project. It is possible to access (login) but list, edit, destroy and create doesn´t work... 

"org.apache.jasper.JasperException: java.lang.ClassCastException: model.Person cannot be cast to model.Person"

and sometimes nothing work!

java.lang.IllegalStateException: This web container has not yet been started

https://www.dropbox.com/s/isazdnwizxth3lt/WebApplication2.zip?dl=0

user1801745
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1 Answers1

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I got it. Must implement transaction em.getTransaction.begin() and .commit(). And restart GlassFish server!!

user1801745
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