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Question

Asked: May 12, 20262026-05-12T19:41:41+00:00 2026-05-12T19:41:41+00:00

I creating a site in JRuby on Rails (JRuby 1.3.0 ). I am using

I creating a site in JRuby on Rails (JRuby 1.3.0 ). I am using Tomcat with it also.

I am posting data to the server with a POST form. The post goes ok but is truncated when it gets to the controller to around 1000 characters.

I have tried using JRuby 1.4RC1 to see the issue disappears but the problem is still present.

I decided to try Ruby on Rails with webrick and the post data is not truncated.

Has anyone used JRuby on Rails and come across this issue at all?

Its a very strange issue hopefully you guys know what I am talking about :-/

Cheers

Eef

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Editorial Team · Answer 1 · 2026-05-12T19:41:41+00:00

Editorial Team

Can you make sure you’re using the latest version of JRuby-Rack (0.9.5)? We did have a few issues with POST truncation in earlier versions. See JRUBY_RACK-15, JRUBY_RACK-10, JRUBY_RACK-4.