[JBoss] AbstractMethodError when deploing on jboss

I inherited java 7 app in my company and was tasked to upgrade it to java 8 and deploy on new jboss servers. I build the app with java 8 with no problem, tried to deploy it, fixed some minor bugs but then AbstractMethodError appeared.

{"WFLYCTL0080: Failed services" => {"jboss.persistenceunit.\"gui-be-2.1.2.war#gui-be-pu\"" => "java.lang.AbstractMethodError


Caused by: java.lang.AbstractMethodError"}}

I read that either use same version on libs that are on Jboss or specify via jboss-deployment-structure.xml that use project libs. I tried to go with same versions approach, but had no luck.

The hibernate version I used is 5.3.14.Final. Same on jboss and in project poms.

Found some error logs in jboss:

(Caused by: java.lang.AbstractMethodError
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:276)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build
(SessionFactoryBuilderImpl.java:467)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build
(EntityManagerFactoryBuilder Impl.java:939)
at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44))

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