[weld-issues] [JBoss JIRA] Created: (WELD-908) Random NPE while serializing bean sent

[Yannick Menager (JIRA)]

Random NPE while serializing bean sent 
---------------------------------------

                 Key: WELD-908
                 URL: https://issues.jboss.org/browse/WELD-908
             Project: Weld
          Issue Type: Bug
    Affects Versions: 1.1.0.Final
         Environment: Glassfish 3.1
            Reporter: Yannick Menager


The problem happens randomly (like 50% of the time), when calling an EJB through it's remote interface, and passing a Session scoped object as an argument, resulting in an NPE:

java.lang.NullPointerException
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1088)
        at java.io.ObjectOutputStream.writeUnshared(ObjectOutputStream.java:397)
        at org.jboss.weld.bean.proxy.util.SerializableProxy.writeObject(SerializableProxy.java:92)
        at sun.reflect.GeneratedMethodAccessor125.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.corba.ee.impl.io.IIOPOutputStream.invokeObjectWriter(IIOPOutputStream.java:646)
        at com.sun.corba.ee.impl.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:612)
        at com.sun.corba.ee.impl.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:196)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:235)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueWithVersion(ValueHandlerImpl.java:216)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:180)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.callWriteValue(CDROutputStream_1_0.java:852)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.writeRMIIIOPValueType(CDROutputStream_1_0.java:837)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:962)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:976)
        at com.sun.corba.ee.impl.encoding.CDROutputObject.write_value(CDROutputObject.java:521)
        at com.sun.corba.ee.impl.corba.TCUtility.marshalIn(TCUtility.java:157)
        at com.sun.corba.ee.impl.corba.AnyImpl.write_value(AnyImpl.java:627)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_any(CDROutputStream_1_0.java:627)
        at com.sun.corba.ee.impl.encoding.CDROutputObject.write_any(CDROutputObject.java:489)
        at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.writeAny(Util.java:366)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.write_Array(ValueHandlerImpl.java:499)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:233)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueWithVersion(ValueHandlerImpl.java:216)
        at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:180)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.callWriteValue(CDROutputStream_1_0.java:852)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.writeArray(CDROutputStream_1_0.java:768)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:949)
        at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:976)
        at com.sun.corba.ee.impl.encoding.CDROutputObject.write_value(CDROutputObject.java:521)
        at com.sun.corba.ee.impl.copyobject.ORBStreamObjectCopierImpl.copy(ORBStreamObjectCopierImpl.java:76)
        at com.sun.corba.ee.impl.copyobject.ORBStreamObjectCopierImpl.copy(ORBStreamObjectCopierImpl.java:65)
        at com.sun.corba.ee.impl.orbutil.copyobject.FallbackObjectCopierImpl.copy(FallbackObjectCopierImpl.java:69)
        at com.sun.corba.ee.impl.orbutil.copyobject.FallbackObjectCopierImpl.copy(FallbackObjectCopierImpl.java:59)
        at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.copyObject(Util.java:771)
        at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.copyObjects(Util.java:742)
        at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl.copyArguments(DynamicMethodMarshallerImpl.java:439)
        at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:227)
        at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:152)
------------------------------------------
import java.io.Serializable;

public class TestObj implements Serializable{
    private String val;

    public TestObj() {
    }

    public TestObj(String val) {
        this.val = val;
    }

    public String getVal() {
        return val;
    }

    public void setVal(String val) {
        this.val = val;
    }
}
------------------------------------------
@RequestScoped
@Named("test")
public class TestWeb {
    @EJB
    private RemoteService remoteService;
    @Inject
    private TestObj testObj;

    @Produces
    @SessionScoped
    public TestObj create() {
        return new TestObj("ads");
    }

    public String getVal()  {
        return remoteService.test(testObj);
    }
}


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