NullPointerException when there are no cookies and AccessLogRequestInfo is enabled

When using the filter-list and project-list plugins I ran into an issue where NullPointerExceptions were being thrown. I turned out the issue is in AccessLogRequestInfo when the Cookie header doesn't exists. The line that causes the exception is a log.debug line. I am including a patch that checks the value of cookieHeader before just using it.

Jul 28, 2010 12:02:16 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet default threw exception
java.lang.NullPointerException
at com.atlassian.jira.web.filters.accesslog.AccessLogRequestInfo.examineCookies(AccessLogR
equestInfo.java:284)
at com.atlassian.jira.web.filters.accesslog.AccessLogRequestInfo.enterRequest(AccessLogReq
uestInfo.java:107)
at com.atlassian.jira.startup.JiraStartupChecklistFilter.doFilter(JiraStartupChecklistFilt
er.java:64)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain
.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:20
6)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprPro
tocol.java:574)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1527)
at java.lang.Thread.run(Thread.java:619)
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