Issue

• The Tomcat 8 AccessLogValve hits a NullPointerException when an OPTIONS * request is received if the access log pattern is configured to log a cookie:

 java.lang.NullPointerException
        at org.apache.catalina.connector.Request.parseCookies(Request.java:2943)
        at org.apache.catalina.connector.Request.convertCookies(Request.java:2958)
        at org.apache.catalina.connector.Request.getCookies(Request.java:1987)
        at org.apache.catalina.valves.AbstractAccessLogValve$CookieElement.addElement(AbstractAccessLogValve.java:1335)
        at org.apache.catalina.valves.AbstractAccessLogValve.log(AbstractAccessLogValve.java:639)
        at org.apache.catalina.core.AccessLogAdapter.log(AccessLogAdapter.java:51)
        at org.apache.catalina.core.StandardEngine.logAccess(StandardEngine.java:342)
        at org.apache.catalina.connector.CoyoteAdapter.postParseRequest(CoyoteAdapter.java:795)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:511)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659)
        at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:285)
        at org.apache.tomcat.util.net.AprEndpoint$SocketWithOptionsProcessor.run(AprEndpoint.java:2368)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)