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Editorial Team
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Asked: 2026-06-02T22:39:13+00:00

Working on iPhone app that takes a photo and then uploads it to a

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Working on iPhone app that takes a photo and then uploads it to a server. The server is in working condition, tested the same by uploading image from android app.

Below is the code snippet

NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",   FORM_BOUNDARY];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPShouldHandleCookies:NO];

[request setHTTPMethod:@"POST"];

[request setValue:contentType forHTTPHeaderField:@"Content-Type"];

[request setValue:[NSString stringWithFormat:@"%d", [data length]] forHTTPHeaderField:@"Content-Length"]

[request setHTTPBody:data];` 
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But i get following response from the sever

HTTP Status 600 - java.lang.NullPointerException

type Status report

message java.lang.NullPointerException

description Cannot find message associated with key http.600

Apache Tomcat/6.0.18
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I suppose error 600 might be user defined.
Is there some tag being missed?
Please suggest.

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1 Answer

  1. Editorial Team

    As you wrote it is server error: HTTP Status 600 - java.lang.NullPointerException.

    Moreover http status code >= 400 means that there are now problems in your request but there are problems on server side.

    If you are server admin – try to debug server, for example, print post arguments.

    I don’t see problems in posted obj-C code.

    P.S. I could just advice you to use highly populated ASIHttpRequest framework. It could handle file upload by itself. It is very easy and safe to use it.

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