* Add selector.wakeup() section * Update SelectorTest.java * Update core-java-modules/core-java-nio-2/src/test/java/com/baeldung/selector/SelectorTest.java * Update SelectorTest.java * Update and rename SelectorTest.java to SelectorUnitTest.java * Update SelectorUnitTest.java * Update and rename SelectorUnitTest.java to SelectorManualTest.java