Hi all,
I do face a problem with JNLP based windows slaves in combination with restricted permissions of Anonymous.
If user Anonymous doesn't has READ permission granted, the JNLP slave (converted to a windows service) fails to connect to the master.

The jenkins-slave.xml contains
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<arguments>-Xrs -jar "%BASE%\slave.jar" -jnlpUrl https://xxx:8443/hudson/computer/xxx/slave-agent.jnlp -jnlpCredentials abcd:efgh -auth abcd:efgh</arguments>
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The tomcat-users.xml contains
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<tomcat-users>
<role rolename="admin"/>
<role rolename="manager"/>
<user username="abcd" password="efgh" roles="admin,manager"/>
</tomcat-users>
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The jenkins-slave.err.log contains
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Failing to obtain https://xxx:8443/hudson/computer/xxx/slave-agent.jnlp
java.io.IOException: Failed to load https://xxx:8443/hudson/computer/xxx/slave-agent.jnlp: 500 Internal Server Error
at hudson.remoting.Launcher.parseJnlpArguments(Launcher.java:228)
at hudson.remoting.Launcher.run(Launcher.java:190)
at hudson.remoting.Launcher.main(Launcher.java:166)
Waiting 10 seconds before retry
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The tomcat's localhost.2011-xx-xx.log contains
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SEVERE: Servlet.service() for servlet Stapler threw exception
hudson.security.AccessDeniedException2: anonymous is missing the Read permission
at hudson.security.ACL.checkPermission(ACL.java:53)
at hudson.model.Node.checkPermission(Node.java:363)
at hudson.model.Hudson.getTarget(Hudson.java:3538)
...
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The setup is as follows:
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OS: Windows 7
Tomcat: 6.0.33
Jenkins: 1.4.10 (also not working with 1.4.31)
JDK: 1.6.27
Security Realm: Matrix based Security is enabled
Authorization: Delegate to servlet container

permissions of user abcd: Overall Read, Overall Administer
permissions of user Anonymous: none
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