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  1. Undertow
  2. UNDERTOW-2245

javax.servlet.*.mapping request attributes are not available in servlets forwarded with RequestDispatcher

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      It can be reproduced in attached simple application test-app-src.zip:

      $ unzip test-app-src.zip
$ cd test-app
$./mvnw package
$ cp target/ROOT.war JBOSS_EAP_749_HOME/standalone/deployments/
$ JBOSS_EAP_749_HOME/bin/standalone.sh

      JBoss EAP 7.4.9 (actual):

      $ curl http://127.0.0.1:8080/dispatch
request attributes:
key: javax.servlet.forward.context_path, value: 
key: javax.servlet.forward.servlet_path, value: /dispatch
key: javax.servlet.forward.request_uri, value: /dispatch

      Tomcat 9.0.72 (expected):

      $ curl http://127.0.0.1:8080/dispatch
request attributes:
key: javax.servlet.forward.request_uri, value: /dispatch
key: javax.servlet.forward.context_path, value: 
key: javax.servlet.forward.servlet_path, value: /dispatch
key: javax.servlet.forward.mapping, value: org.apache.catalina.core.ApplicationMapping$MappingImpl@2248cb0c  <<<===
      Show
      It can be reproduced in attached simple application test-app-src.zip: $ unzip test-app-src.zip $ cd test-app $./mvnw package $ cp target/ROOT.war JBOSS_EAP_749_HOME/standalone/deployments/ $ JBOSS_EAP_749_HOME/bin/standalone.sh JBoss EAP 7.4.9 (actual): $ curl http: //127.0.0.1:8080/dispatch request attributes: key: javax.servlet.forward.context_path, value: key: javax.servlet.forward.servlet_path, value: /dispatch key: javax.servlet.forward.request_uri, value: /dispatch Tomcat 9.0.72 (expected): $ curl http: //127.0.0.1:8080/dispatch request attributes: key: javax.servlet.forward.request_uri, value: /dispatch key: javax.servlet.forward.context_path, value: key: javax.servlet.forward.servlet_path, value: /dispatch key: javax.servlet.forward.mapping, value: org.apache.catalina.core.ApplicationMapping$MappingImpl@2248cb0c <<<===

      From Servlet 4.0 spec, request attribute javax.servlet.forward.mapping must be set in a forwarded servlet with RequestDispacher, but it is not set in JBoss EAP 7.4.9.

      https://javaee.github.io/servlet-spec/downloads/servlet-4.0/servlet-4_0_FINAL.pdf

      9.4.2 Forwarded Request Parameters
      ...
      The following request attributes must be set:

      • javax.servlet.forward.mapping <<<=== added from servlet 4.0
      • javax.servlet.forward.request_uri
      • javax.servlet.forward.context_path
      • javax.servlet.forward.servlet_path
      • javax.servlet.forward.path_info
      • javax.servlet.forward.query_string

        1. test-app-src.zip
          63 kB

            mshikalw Moulali Shikalwadi
            mshikalw Moulali Shikalwadi
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              Created:
              Updated:
              Resolved: