Add missing serialVersionUID (using default -1 value).

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595316 13f79535-47bb-0310-9956-ffa450edef68
Remove unused imports.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595317 13f79535-47bb-0310-9956-ffa450edef68
Remove dead comments.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595323 13f79535-47bb-0310-9956-ffa450edef68
No need to fail if sleeping is interrupted, just go on and check assertions. Also, rename ivar.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595326 13f79535-47bb-0310-9956-ffa450edef68
lvar name: it's an appender, not an "app" (like a client app).

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595327 13f79535-47bb-0310-9956-ffa450edef68
lvar: it's a socketAppender, not a plain appender.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595328 13f79535-47bb-0310-9956-ffa450edef68
Better test method name, we are testing 64 KB messages, not 64,000 messages.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595329 13f79535-47bb-0310-9956-ffa450edef68
Wait a little longer for the server to process all requests.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1595334 13f79535-47bb-0310-9956-ffa450edef68