Код:

public class CtrlEJB extends CtrlImplEJB
{
	
	.....
	
	public SaleModel doSale(SaleModel sale) throws ValidationException
	{
		log.info("test");
		return new SaleModel();
	}
	
	.....
	
}

Код:

ERROR [:LogInterceptor:RMI TCP Connection(2)-127.0.0.1] RuntimeException in method: public abstract SaleModel CtrlEJB.doSale(SaleModel) throws ValidationException, java.rmi.RemoteException
java.lang.IllegalArgumentException: wrong number of arguments
	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:324)
	at org.jboss.ejb.StatefulSessionContainer$ContainerInterceptor.invoke(StatefulSessionContainer.java:982)
	at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:111)
	at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)
	at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
	at org.jboss.ejb.plugins.AbstractTxInterceptorBMT.invokeNext(AbstractTxInterceptorBMT.java:144)
	at org.jboss.ejb.plugins.TxInterceptorBMT.invoke(TxInterceptorBMT.java:62)
	at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:273)
	at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
	at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
	at org.jboss.ejb.StatefulSessionContainer.internalInvoke(StatefulSessionContainer.java:449)
	at org.jboss.ejb.Container.invoke(Container.java:709)
	at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:82)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
	at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:360)
	at sun.reflect.GeneratedMethodAccessor129.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
	at sun.rmi.transport.Transport$1.run(Transport.java:148)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
	at java.lang.Thread.run(Thread.java:534)