For example, this error:

org.jboss.deployers.spi.DeploymentException: java.lang.RuntimeException: Unable to create annotation from method/field ejbCreate for EJB SessionBeanLocalBean
at org.jboss.ejb3.deployers.EJBRegistrationDeployer.deploy(EJBRegistrationDeployer.java:178)
at org.jboss.deployers.plugins.deployer.AbstractSimpleDeployer.commitDeploy(AbstractSimpleDeployer.java:52)
at org.jboss.deployers.plugins.deployer.DeployerWrapper.commitDeploy(DeployerWrapper.java:170)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.commitDeploy(MainDeployerImpl.java:592)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.process(MainDeployerImpl.java:476)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.process(MainDeployerImpl.java:406)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:121)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:110)
at org.jboss.profileservice.aop.MainDeployerAspect.process(MainDeployerAspect.java:53)
at org.jboss.aop.advice.org.jboss.profileservice.aop.MainDeployerAspect_z_process_25425741.invoke(MainDeployerAspect_z_process_25425741.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at AOPContainerProxy$0.process(AOPContainerProxy$0.java)
at org.jboss.deployment.services.DeploymentManagerService.start(DeploymentManagerService.java:264)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.jmx.connector.invoker.InvokerAdaptorService.invoke(InvokerAdaptorService.java:270)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:138)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:140)
at org.jboss.jmx.connector.invoker.SerializableInterceptor.invoke(SerializableInterceptor.java:74)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.invocation.jrmp.server.JRMPProxyFactory.invoke(JRMPProxyFactory.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:815)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:416)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.RuntimeException: Unable to create annotation from method/field ejbCreate for EJB SessionBeanLocalBean
at org.jboss.ejb3.Ejb3DescriptorHandler.addAnnotations(Ejb3DescriptorHandler.java:1973)
at org.jboss.ejb3.Ejb3DescriptorHandler.addEjb21Annotations(Ejb3DescriptorHandler.java:762)
at org.jboss.ejb3.Ejb3DescriptorHandler.addDescriptorAnnotations(Ejb3DescriptorHandler.java:746)
at org.jboss.ejb3.Ejb3DescriptorHandler.getStatefulContainer(Ejb3DescriptorHandler.java:366)
at org.jboss.ejb3.Ejb3AnnotationHandler.getContainers(Ejb3AnnotationHandler.java:148)
at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:480)
at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:433)
at org.jboss.ejb3.Ejb3Deployment.deployUrl(Ejb3Deployment.java:415)
at org.jboss.ejb3.Ejb3Deployment.deploy(Ejb3Deployment.java:381)
at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:336)
at org.jboss.ejb3.deployers.EJBRegistrationDeployer.deploy(EJBRegistrationDeployer.java:168)
... 66 more
Caused by: java.lang.NoSuchFieldException: ejbCreate
at java.lang.Class.getDeclaredField(Class.java:1854)
at org.jboss.ejb3.Ejb3DescriptorHandler.addAnnotations(Ejb3DescriptorHandler.java:1922)
... 76 more

Will make subsequent deployments throw this error:

org.jboss.deployers.spi.DeploymentException: java.lang.IllegalStateException: Container jboss.j2ee:ear=ejb3_bb_stateful_busiface.ear,jar=ejb3_bb_stateful_busiface_ejb.jar,name=AnnotatedInterfaceBean,service=EJB3 is already registered
at org.jboss.ejb3.deployers.EJBRegistrationDeployer.deploy(EJBRegistrationDeployer.java:178)
at org.jboss.deployers.plugins.deployer.AbstractSimpleDeployer.commitDeploy(AbstractSimpleDeployer.java:52)
at org.jboss.deployers.plugins.deployer.DeployerWrapper.commitDeploy(DeployerWrapper.java:170)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.commitDeploy(MainDeployerImpl.java:592)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.process(MainDeployerImpl.java:476)
at org.jboss.deployers.plugins.deployment.MainDeployerImpl.process(MainDeployerImpl.java:406)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:121)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:110)
at org.jboss.profileservice.aop.MainDeployerAspect.process(MainDeployerAspect.java:53)
at org.jboss.aop.advice.org.jboss.profileservice.aop.MainDeployerAspect_z_process_25425741.invoke(MainDeployerAspect_z_process_25425741.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at AOPContainerProxy$0.process(AOPContainerProxy$0.java)
at org.jboss.deployment.services.DeploymentManagerService.start(DeploymentManagerService.java:264)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.jmx.connector.invoker.InvokerAdaptorService.invoke(InvokerAdaptorService.java:270)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:138)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:140)
at org.jboss.jmx.connector.invoker.SerializableInterceptor.invoke(SerializableInterceptor.java:74)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.invocation.jrmp.server.JRMPProxyFactory.invoke(JRMPProxyFactory.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:815)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:416)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.IllegalStateException: Container jboss.j2ee:ear=ejb3_bb_stateful_busiface.ear,jar=ejb3_bb_stateful_busiface_ejb.jar,name=AnnotatedInterfaceBean,service=EJB3 is already registered
at org.jboss.ejb3.Ejb3Registry.register(Ejb3Registry.java:80)
at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:488)
at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:433)
at org.jboss.ejb3.Ejb3Deployment.deployUrl(Ejb3Deployment.java:415)
at org.jboss.ejb3.Ejb3Deployment.deploy(Ejb3Deployment.java:381)
at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:336)
at org.jboss.ejb3.deployers.EJBRegistrationDeployer.deploy(EJBRegistrationDeployer.java:168)
... 66 more