After configuring security and restarting the server, the following exception was encountered. Note
that hudson is deployed as a war file on a local Tomcat instance. Hudson version 1.203

java.lang.NullPointerException
hudson.security.HudsonPrivateSecurityRealm$Details.getUsername(HudsonPrivateSecurityRealm.jav
a:157)
org.acegisecurity.acls.sid.PrincipalSid.<init>(PrincipalSid.java:50)
hudson.security.SidACL._hasPermission(SidACL.java:34)
hudson.security.GlobalMatrixAuthorizationStrategy$AclImpl._hasPermission(GlobalMatrixAuthoriza
tionStrategy.java:112)
hudson.security.SidACL.hasPermission(SidACL.java:20)
hudson.security.ACL.checkPermission(ACL.java:28)
hudson.model.View.checkPermission(View.java:102)
hudson.model.Hudson.getTarget(Hudson.java:2165)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:362)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:351)
org.kohsuke.stapler.Stapler.service(Stapler.java:111)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:52)
hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:28)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessing
Filter.java:125)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFil
ter.java:142)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrati
onFilter.java:249)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:44)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:85)