Complete Example Code for BAEL-782 (#2270)

* added updated example codes

* updated example code StringToCharStream

* deleted StringToCharStream.java locally

* removed redundant file

* added code for apache commons collection SetUtils

* refactored example code

* added example code for bytebuddy

libraries/src/main/java/com/baeldung/bytebuddy/Bar.java

@@ -0,0 +1,16 @@
+package com.baeldung.bytebuddy;
+
+import net.bytebuddy.implementation.bind.annotation.BindingPriority;
+
+public class Bar {
+
+    @BindingPriority(3)
+    public static String sayHelloBar() { return "Holla in Bar!"; }
+
+    @BindingPriority(2)
+    public static String sayBar() { return "bar"; }
+
+    public String bar() { return Bar.class.getSimpleName() + " - Bar"; }
+
+
+}

libraries/src/main/java/com/baeldung/bytebuddy/Foo.java

@@ -0,0 +1,7 @@
+package com.baeldung.bytebuddy;
+
+public class Foo {
+
+    public String sayHelloFoo() { return "Hello in Foo!"; }
+
+}