How to avoid OutOfMemoryError when uploading a large file using Jersey client

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You could use streams.Try something like this on the client:

InputStream fileInStream = new FileInputStream(fileName);
String sContentDisposition = "attachment; filename=\"" + fileName.getName()+"\"";
WebResource fileResource = a_client.resource(a_sUrl);       
ClientResponse response = fileResource.type(MediaType.APPLICATION_OCTET_STREAM)
                        .header("Content-Disposition", sContentDisposition)
                        .post(ClientResponse.class, fileInStream);

with resource like this on the server:

@PUT
@Consumes("application/octet-stream")
public Response putFile(@Context HttpServletRequest a_request,
                         @PathParam("fileId") long a_fileId,
                         InputStream a_fileInputStream) throws Throwable
{
    // Do something with a_fileInputStream
    // etc

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