merged formatting changes and removed while loops in asynchronous client (#870)

* made changes to java reflection

* removed redundant method makeSound in Animal abstract class

* added project for play-framework article

* added project for regex

* changed regex project from own model to core-java

* added project for routing in play

* made changes to regex project

* refactored code for REST API with Play project

* refactored student store indexing to zero base

* added unit tests, removed bad names

* added NIO Selector project under core-java module

* requested changes made

* added project for nio2

* standardized exception based tests

* fixed exception based tests

* removed redundant files

* added network interface project

* used UUID other than timestamps

* fixed network interface tests

* removed filetest change

* made changes to NIO2 FileTest names

* added project for asyncronous channel apis

* added project for NIO2 advanced filesystems APIS

* merge conflicts

* merged changes to asyncfiletest with future get API

* removed while loops from async client and server

* added project for java8 optional

* fixed merge conflicts in spring-core

core-java/src/main/java/com/baeldung/java/nio2/visitor/FileSearchExample.java

@@ -53,4 +53,4 @@ public class FileSearchExample implements FileVisitor<Path> {
         Files.walkFileTree(startingDir, crawler);
     }
 
-}
+}

core-java/src/main/java/com/baeldung/java/nio2/visitor/FileVisitorImpl.java

@@ -27,4 +27,4 @@ public class FileVisitorImpl implements FileVisitor<Path> {
     public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
         return null;
     }
-}
+}

core-java/src/main/java/com/baeldung/java_8_features/Person.java

@@ -0,0 +1,39 @@
+package com.baeldung.java_8_features;
+
+import java.util.Optional;
+
+public class Person {
+    private String name;
+    private int age;
+    private String password;
+
+    public Person(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public Optional<String> getName() {
+        return Optional.ofNullable(name);
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Optional<Integer> getAge() {
+        return Optional.ofNullable(age);
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public Optional<String> getPassword() {
+        return Optional.ofNullable(password);
+    }
+
+}