java.lang.NullPointerException error while sending data to a webservice

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I have a webservice where I am sending some data. The return of the service is returning this message to me in the integration manual, says it would be an internal error, I wanted to understand if the problem is on my side or the service provided. 

<?xmlversion="1.0" encoding="ISO-8859-1"?><Message>
    <MessageId>
        <ServiceId>SolicitaLogon</ServiceId>
        <Version>1.0</Version>
        <MsgDesc>Solicitação do Desafio de Logon</MsgDesc>
        <Code>2052105043</Code>
        <FromAddress>TJ</FromAddress>
        <ToAddress>PGE</ToAddress>
        <Date>2018-06-15</Date>
    </MessageId>
    <MessageBody>
        <Resposta>
            <Mensagem>
                <Codigo>1</Codigo>
                <Descricao>ERRO INTERNO; DETALHES: java.lang.NullPointerException</Descricao>
            </Mensagem>
        </Resposta>
    </MessageBody>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/><Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><DigestValue>92QOnSuXAIiWFv7wgwywn6/acNM=</DigestValue></Reference></SignedInfo><SignatureValue>MNQVELicGB76yNV3cRIPOaTNxr9DgVy498cgWAVkq3V23E1yFGIg2tGjuCDTEPlkUap5QHT/eMHO
s7Ho7eBh1RDn6Tjj5BIvTRNoXexFx/vE/XS9OnSuVUUqCvuH4y0arLcwlk9NZWnBqvuxEubC7a0o
1rh/KytGAdEKzzryY7E=</SignatureValue><KeyInfo><X509Data><X509Certificate>MIICrzCCAhgCCQDVUHUkOXrNMDANBgkqhkiG9w0BAQUFADCBmzELMAkGA1UEBhMCQlIxDzANBgNV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</X509Certificate></X509Data></KeyInfo></Signature></Message>
    
asked by anonymous 15.06.2018 / 19:50

1 answer

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Your client is written in C #. So there is no way to java.lang.NullPointerException on your side. Because as the name of this exception already says, it is an exception for Java.

It may even be that you invoked their service with some invalid data or parameter, but still, it's still their error anyway. In 99% of the time, having a NullPointerException being spit out is a programming error. In the other 1% it is a sign that the code is a very badly made gambiarra without any kind of decent error handling. In case, the component where this error came from is their server, so that's where the error is.

    
15.06.2018 / 19:56
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