CC... Most likely cause is that you need either mail.jar or mailapi.jar on your CLASSPATH. Also, you may want to check the archives. This problem has come up many, many times. Stan
----- Original Message ----- From: "Liu, C.C" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, April 05, 2002 2:56 PM Subject: Attachment sample > Hi, > > I got the following error from Attachment sample client side, can anyone > show me what's the > possible cause of it? > Thanks. > > C.C. Liu > > java.lang.NullPointerException > java.lang.NullPointerException > java.lang.NullPointerException > at > org.apache.axis.encoding.ser.JAFDataHandlerSerializer.serialize(Unknown > Source) > at > org.apache.axis.encoding.SerializationContextImpl.serializeActual(Unknown > Source) > at > org.apache.axis.encoding.SerializationContextImpl.serialize(Unknown Source) > at > org.apache.axis.encoding.SerializationContextImpl.outputMultiRefs(Unknown > Source) > at org.apache.axis.message.SOAPEnvelope.outputImpl(Unknown Source) > at org.apache.axis.message.MessageElement.output(Unknown Source) > at org.apache.axis.SOAPPart.getAsString(Unknown Source) > at org.apache.axis.SOAPPart.getAsBytes(Unknown Source) > at org.apache.axis.Message.getContentLength(Unknown Source) > at org.apache.axis.transport.http.HTTPSender.invoke(Unknown Source) > at org.apache.axis.strategies.InvocationStrategy.visit(Unknown > Source) > at org.apache.axis.SimpleChain.doVisiting(Unknown Source) > at org.apache.axis.SimpleChain.invoke(Unknown Source) > at org.apache.axis.client.AxisClient.invoke(Unknown Source) > at org.apache.axis.client.Call.invoke(Unknown Source) > at org.apache.axis.client.Call.invoke(Unknown Source) > at org.apache.axis.client.Call.invoke(Unknown Source) > at org.apache.axis.client.Call.invoke(Unknown Source) > at testEchoAttach.echo(testEchoAttach.java:54) > at testEchoAttach.main(testEchoAttach.java:201)
