Fix a bug introduced in r1357039 that removed a local close variable which mean that code that should of triggered a socket close, ended up closing the Poller as well.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531087 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531099 13f79535-47bb-0310-9956-ffa450edef68