javassist exception call stack when hibernate doesn't find javassist in deployment classpath

gistfile1.txt

2016-01-08 16:25:07,868 INFO  [org.hibernate.orm.deprecation] (ServerService Thread Pool -- 66) HHH90000001: Found usage of deprecated setting for specifying Scanner [hibernate.ejb.resource_scanner]; use [hibernate.archive.scanner] instead
2016-01-08 16:25:07,876 INFO  [org.hibernate.annotations.common.Version] (ServerService Thread Pool -- 66) HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2016-01-08 16:25:07,955 INFO  [org.jboss.weld.deployer] (MSC service thread 1-5) WFLYWELD0006: Starting Services for CDI deployment: hibernate4native_search_test.jar
2016-01-08 16:25:07,961 INFO  [org.infinispan.configuration.cache.EvictionConfigurationBuilder] (ServerService Thread Pool -- 66) ISPN000152: Passivation configured without an eviction policy being selected. Only manually evicted entities will be passivated.
2016-01-08 16:25:07,963 INFO  [org.infinispan.configuration.cache.EvictionConfigurationBuilder] (ServerService Thread Pool -- 66) ISPN000152: Passivation configured without an eviction policy being selected. Only manually evicted entities will be passivated.
2016-01-08 16:25:07,964 INFO  [org.infinispan.configuration.cache.EvictionConfigurationBuilder] (ServerService Thread Pool -- 66) ISPN000152: Passivation configured without an eviction policy being selected. Only manually evicted entities will be passivated.
2016-01-08 16:25:07,964 INFO  [org.infinispan.configuration.cache.EvictionConfigurationBuilder] (ServerService Thread Pool -- 66) ISPN000152: Passivation configured without an eviction policy being selected. Only manually evicted entities will be passivated.
2016-01-08 16:25:07,987 INFO  [org.jboss.weld.Version] (MSC service thread 1-5) WELD-000900: 2.3.2 (Final)
2016-01-08 16:25:07,997 INFO  [org.jboss.weld.deployer] (MSC service thread 1-6) WFLYWELD0009: Starting weld service for deployment hibernate4native_search_test.jar
2016-01-08 16:25:07,997 INFO  [org.jboss.as.arquillian] (MSC service thread 1-8) Arquillian deployment detected: ArquillianConfig[service=jboss.arquillian.config."hibernate4native_search_test.jar",unit=hibernate4native_search_test.jar,tests=[org.jboss.as.test.integration.hibernate.search.HibernateSearchJPATestCase]]
2016-01-08 16:25:08,108 INFO  [org.jboss.as.jpa] (ServerService Thread Pool -- 29) WFLYJPA0010: Starting Persistence Unit (phase 2 of 2) Service 'hibernate4native_search_test.jar#jpa-search-test-pu'
2016-01-08 16:25:08,217 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 66) WFLYCLINF0002: Started client-mappings cache from ejb container
2016-01-08 16:25:08,282 INFO  [org.hibernate.dialect.Dialect] (ServerService Thread Pool -- 29) HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2016-01-08 16:25:08,286 WARN  [org.hibernate.dialect.H2Dialect] (ServerService Thread Pool -- 29) HHH000431: Unable to determine H2 database version, certain features may not work
2016-01-08 16:25:08,314 INFO  [org.hibernate.envers.boot.internal.EnversServiceImpl] (ServerService Thread Pool -- 29) Envers integration enabled? : true
2016-01-08 16:25:08,583 INFO  [org.hibernate.search.engine.Version] (ServerService Thread Pool -- 29) HSEARCH000034: Hibernate Search 5.5.1.Final
2016-01-08 16:25:08,610 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 29) MSC000001: Failed to start service jboss.persistenceunit."hibernate4native_search_test.jar#jpa-search-test-pu": org.jboss.msc.service.StartException in service jboss.persistenceunit."hibernate4native_search_test.jar#jpa-search-test-pu": javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:172)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:117)
	at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:667)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:182)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
	at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:954)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:882)
	at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:154)
	... 7 more
Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
	at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:123)
	at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:346)
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879)
	... 9 more
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:91)
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:116)
	at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:388)
	at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:509)
	at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:124)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
	at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96)
	... 13 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:88)
	... 22 more
Caused by: java.lang.RuntimeException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
	at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:515)
	at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:492)
	at javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:428)
	at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:400)
	at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:72)
	at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:177)
	at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:157)
	at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:63)
	... 27 more
Caused by: javassist.CannotCompileException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
	at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:170)
	at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:507)
	... 34 more
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:182)
	at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:164)
	... 35 more
Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.ProxyObject from [Module "deployment.hibernate4native_search_test.jar:main" from Service Module Loader]
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:198)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
	... 43 more

2016-01-08 16:25:08,615 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 1) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "hibernate4native_search_test.jar")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.persistenceunit.\"hibernate4native_search_test.jar#jpa-search-test-pu\"" => "org.jboss.msc.service.StartException in service jboss.persistenceunit.\"hibernate4native_search_test.jar#jpa-search-test-pu\": javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
    Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
    Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
    Caused by: java.lang.reflect.InvocationTargetException
    Caused by: java.lang.RuntimeException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: javassist.CannotCompileException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.ProxyObject from [Module \"deployment.hibernate4native_search_test.jar:main\" from Service Module Loader]"}}
2016-01-08 16:25:08,616 ERROR [org.jboss.as.server] (management-handler-thread - 1) WFLYSRV0021: Deploy of deployment "hibernate4native_search_test.jar" was rolled back with the following failure message: 
{"WFLYCTL0080: Failed services" => {"jboss.persistenceunit.\"hibernate4native_search_test.jar#jpa-search-test-pu\"" => "org.jboss.msc.service.StartException in service jboss.persistenceunit.\"hibernate4native_search_test.jar#jpa-search-test-pu\": javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: jpa-search-test-pu] Unable to build Hibernate SessionFactory
    Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
    Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
    Caused by: java.lang.reflect.InvocationTargetException
    Caused by: java.lang.RuntimeException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: javassist.CannotCompileException: by java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject
    Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.ProxyObject from [Module \"deployment.hibernate4native_search_test.jar:main\" from Service Module Loader]"}}
2016-01-08 16:25:08,620 INFO  [org.jboss.as.jpa] (ServerService Thread Pool -- 66) WFLYJPA0011: Stopping Persistence Unit (phase 1 of 2) Service 

@scottmarlow Thank you for sharing this gist.

I have bumped into this while looking for a solution for the problem described in my question in SO.

I have tried adding the javassist-3.20.0-GA.jar from my .m2 directory to my webapp's WebContent\WEB-INF\lib and then adding the same to build path. However, it didn't work for my case.

Additionally, I have also added the same to Web Deployment Assembly, but that too didn't work.

May I request you to please take a look into my question?