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Editorial Team
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Asked: 2026-05-28T07:23:10+00:00

When I try to request for a non existent resource using a GET request

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When I try to request for a non existent resource using a GET request for –

http://localhost:8080/jackrabbit/server/default/jcr:root/user/abc/article/article-1.0.json

I am expecting a 404 response but in JSON format. But instead I get an html response –

<html><head><title>Apache Tomcat/6.0.32 - Error report</title>...</body></html>

How can I make sure that this content is returned in JSON format instead of HTML format. I have specified the following in web.xml but that did not help –

<mime-mapping>
    <extension>json</extension>
    <mime-type>application/json</mime-type>
</mime-mapping>
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1 Answer

  1. Editorial Team

    You should configure a 404 error page that sets the proper content type and outputs JSON.

    <error-page>
    <error-code>404</error-code>
    <location>/notFoundJSON</location>
</error-page>

    Where /notFoundJSON is mapped to a servlet that uses response.setContentType(..) and writes JSON to the response.getWriter()

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