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  1. JDK
  2. JDK-7015981

java.net.HttpCookie.domainMatches returns false if domain doesn't start with a dot

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    • Subcomponent:
    • Resolved In Build:
      b03
    • CPU:
      generic
    • OS:
      generic
    • Verification:
      Verified

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        Description

        We believe that the java.net.HttpCookie.domainMatches method does
        not work perfectly according RFC 2965.

        The following short testcase demonstrates the issue.

        $ cat MyCookieDomain.java
        public class MyCookieDomain {
            public static void main(String[] args) throws Exception {
                System.out.println(
                    java.net.HttpCookie.domainMatches(args[0], args[1]));
            }
        }

        $ javac MyCookieDomain.java
        $ java -showversion MyCookieDomain ajax.com www.ajax.com
        java version "1.6.0_23"
        Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
        Java HotSpot(TM) Server VM (build 19.0-b09, mixed mode)

        false


        The method returns false for "ajax.com". However, the Javadoc for the
        static domainMatches method even contains an example from RFC 2965:

              * A Set-Cookie2 with Domain=ajax.com will be accepted, and the
                 value for Domain will be taken to be .ajax.com, because a dot
                 gets prepended to the value.

        See also
        http://download.oracle.com/javase/6/docs/api/java/net/HttpCookie.html#domainMatches%28java.lang.String,%20java.lang.String%29
        http://www.ietf.org/rfc/rfc2965.txt

        According to the example, we believe that the method should return true
        and not false. We believe that for the check, the method should prepend a leading dot
        to the domain value if an explicitly specified value does not start with a dot.

        Please evaluate.

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                • Assignee:
                  dmeetry Dmeetry Degrave (Inactive)
                  Reporter:
                  jloefflm Johann Löfflmann (Inactive)
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