We are getting following error when deploy in a group which contains four nodes. The first 2 or 3 nodes started fine after deployment and remaining nodes fails. The issue is not to a specific node. Whatever the node, the last one fails to start due to this error:

2020-01-23 07:10:28,095 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 68) MSC000001: Failed to start service jboss.persistenceunit."app.ear/appEJB.jar#em": org.jboss.msc.service.StartException in service jboss.persistenceunit."app.ear/appEJB.jar#em": java.lang.RuntimeException: java.lang.NullPointerException

at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:172) [wildfly-jpa-8.2.1.Final.jar:8.2.1.Final]

at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:117) [wildfly-jpa-8.2.1.Final.jar:8.2.1.Final]

at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_222]

at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:474)

at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:182) [wildfly-jpa-8.2.1.Final.jar:8.2.1.Final]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_222]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_222]

at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_222]

at org.jboss.threads.JBossThread.run(JBossThread.java:122)

Caused by: java.lang.RuntimeException: java.lang.NullPointerException

at org.jboss.as.weld.services.bootstrap.WeldEjbInjectionServices$2.createResource(WeldEjbInjectionServices.java:225) [wildfly-weld-8.2.1.Final.jar:8.2.1.Final]

at org.jboss.weld.injection.AbstractResourceInjection.getResourceReference(AbstractResourceInjection.java:44) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.injection.AbstractResourceInjection.injectResourceReference(AbstractResourceInjection.java:53) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.util.Beans.injectEEFields(Beans.java:343) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.injection.producer.ResourceInjector$1.proceed(ResourceInjector.java:69) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:48) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.injection.producer.ResourceInjector.inject(ResourceInjector.java:72) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:121) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]

at org.hibernate.jpa.event.internal.jpa.BeanManagerListenerFactory$BeanMetaData.<init>(BeanManagerListenerFactory.java:82) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.event.internal.jpa.BeanManagerListenerFactory$BeanMetaData.<init>(BeanManagerListenerFactory.java:71) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.event.internal.jpa.BeanManagerListenerFactory.buildListener(BeanManagerListenerFactory.java:57) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.event.internal.jpa.LegacyCallbackProcessor.resolveCallbacks(LegacyCallbackProcessor.java:167) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.event.internal.jpa.LegacyCallbackProcessor.processCallbacksForEntity(LegacyCallbackProcessor.java:70) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.event.spi.JpaIntegrator.integrate(JpaIntegrator.java:150) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:312) [hibernate-core-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859) [hibernate-core-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398) [hibernate-core-4.3.7.Final.jar:4.3.7.Final]

at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844) [hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]

at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44) [jipijapa-hibernate4-3-1.0.1.Final.jar:]

at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:154) [wildfly-jpa-8.2.1.Final.jar:8.2.1.Final]

... 8 more

Caused by: java.lang.NullPointerException

at org.jboss.as.weld.services.bootstrap.WeldEjbInjectionServices$2.createResource(WeldEjbInjectionServices.java:212) [wildfly-weld-8.2.1.Final.jar:8.2.1.Final]

... 29 more

This is on WildFly 8.2.1 domain mode.

When I start this node with different group with same ear deployed, it starts fine. It looks like some congestion when starting multiple nodes in same group.

Any thoughts?