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[Java] [Glassfish 3] Wrong character encoding in multipart servlet request

Hello!

It’s been a long time since I posted here, but I’m currently very busy with my study, work and projects.
Recently we had a problem with processing multipart HTTP requests in Java servlet. We are using Glassfish 3.1.1 as application server. The thing is despite of the fact that HTTP request had UTF-8 encoding, all string data actually were in ISO-8859-1 (a.k.a. ISO-LATIN-1).

I tried several different approaches to set encoding to UTF-8… until I came across the following: http://java.net/jira/browse/GLASSFISH-18516. As I understood, It says that there is a known issue in Glassfish 3.1.2 with incorrect interpretation of character encoding of multipart HTTP request parameters. Instead of UTF-8 it applies ISO-8859-1 ignoring settings in configuration files (web.xml, glassfish-web.xml) and in HTTP request. Turns out, this issue also affects Glassfish 3.1.1, which is used in our project.

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