Problemas com ejb 3.0

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#1

olá pessoal do pj

estou trabalhando com ejb 3.0 e estou com um problema com a serialização de tipos numericos BigInteger e BigDecimal;

Estou utlilizando jboss como container ejb e o tomcat como container web,
modifiquei os meus entity beans para utilizar Double e integer no lugar de
BigInteger e BigDecimal, e funciona normalmente, mas quando tento recuperar um entity bean ou faço uma consulta a qual possua um campo com os tipos numericos BigInteger e BigDecimal citados ocorre o seguinte erro:

java.lang.reflect.UndeclaredThrowableException
        at $Proxy0.getResultListOfNativeQuery(Unknown Source)
        at com.datelli.web.est.Produtos.consultaEstoque(Produtos.java:640)
        at com.datelli.web.est.Produtos.main(Produtos.java:647)
Caused by: java.rmi.MarshalException: Failed to communicate.  Problem during marshalling/unmarshalling; nested exception is: 
        java.lang.NullPointerException
        at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:306)
        at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
        at org.jboss.remoting.Client.invoke(Client.java:525)
        at org.jboss.remoting.Client.invoke(Client.java:488)
        at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:78)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
        ... 3 more
Caused by: java.lang.NullPointerException
        at java.math.BigInteger.readObject(BigInteger.java:3122)
        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:597)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
        at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
        at java.math.BigDecimal.readObject(BigDecimal.java:3209)
        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:597)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1642)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
        at java.util.ArrayList.readObject(ArrayList.java:593)
        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:597)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
        at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:122)
        at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
        at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
        at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
        at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)

se aguém ja tiveer passando pelo mesmo problema favor me ajude!

obrigado a todos!

ops postei no lugar errado: link do post no local certo:
http://www.portaljava.com.br/home/modules.php?name=Forums&file=viewtopic&t=39178

#2