Error running the attachments sample

[Lakshmi Prasad]

Hi All,   I have downloaded alpha3 and I am trying to run the samples. In the samples while I am trying to run the attachments sample I am getting the following error. Can any body help this................   java.lang.NullPointerException         at org.apache.axis.encoding.JAFDataHandlerSerializer.serialize(JAFDataHandlerSerializer.java:87)         at org.apache.axis.encoding.TypeMappingRegistry.serialize(TypeMappingRegistry.java:275)         at org.apache.axis.encoding.SerializationContext.serialize(SerializationContext.java:417)         at org.apache.axis.encoding.SerializationContext.outputMultiRefs(SerializationContext.java:442)         at org.apache.axis.message.SOAPEnvelope.outputImpl(SOAPEnvelope.java:357)         at org.apache.axis.message.MessageElement.output(MessageElement.java:448)         at org.apache.axis.SOAPPart.getAsString(SOAPPart.java:329)         at org.apache.axis.SOAPPart.getAsBytes(SOAPPart.java:272)         at org.apache.axis.Message.getContentLength(Message.java:293)         at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:354)         at org.apache.axis.SimpleTargetedChain.invoke(SimpleTargetedChain.java:104)         at org.apache.axis.client.AxisClient.invoke(AxisClient.java:178)         at org.apache.axis.client.Call.invoke(Call.java:1254)         at org.apache.axis.client.Call.invoke(Call.java:1113)         at org.apache.axis.client.Call.invoke(Call.java:1043)         at org.apache.axis.client.Call.invoke(Call.java:676)         at EchoAttachment.echo(EchoAttachment.java:141)         at EchoAttachment.main(EchoAttachment.java:319) Can't convert 3 to Bytes AxisFault   faultCode: http://xml.apache.org/axis/:Server.userException   faultString: java.lang.NullPointerException   faultActor: null   faultDetail:         exceptionName: java.lang.NullPointerException         stackTrace: java.lang.NullPointerException         at org.apache.axis.Message.getContentLength(Message.java:293)         at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:354)         at org.apache.axis.SimpleTargetedChain.invoke(SimpleTargetedChain.java:104)         at org.apache.axis.client.AxisClient.invoke(AxisClient.java:178)         at org.apache.axis.client.Call.invoke(Call.java:1254)         at org.apache.axis.client.Call.invoke(Call.java:1113)         at org.apache.axis.client.Call.invoke(Call.java:1043)         at org.apache.axis.client.Call.invoke(Call.java:676)         at EchoAttachment.echo(EchoAttachment.java:141)         at EchoAttachment.main(EchoAttachment.java:319) Regards Prasad