* Char array to string and string to char array test cases added
* Minor code renames
* Added groupingBy collector unit tests
* Added test case for int summary calculation on grouped results
* Added the grouping by classes to the main source path
* Reverting char array to string test class
* Reverting char array to string test class
* Reverting char array to string test class
* Reverting char array to string test class
* String to char array and char array to String.
* Method change
* Custom ThreadPool In Java 8 Parallel Streams
* Implemented suggested edits from editor.
* Broke long method signature
* Changed primitive type int to long and formula.
* Update wrapper type to Long
* Added "Test" suffix to test class name.
* String to char array and char array to String.
* Method change
* Custom ThreadPool In Java 8 Parallel Streams
* Implemented suggested edits from editor.
* Broke long method signature
* Changed primitive type int to long and formula.
* Update wrapper type to Long
* String to char array and char array to String.
* Method change
* Custom ThreadPool In Java 8 Parallel Streams
* Implemented suggested edits from editor.
* Broke long method signature
* Changed primitive type int to long and formula.
* Update wrapper type to Long
* 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
* fixed optional
* fixed optional
* fixed asyncechotest
* shifted optional to own package
* made additional tests to demo filter API
* added code for Map
* added javaslang project
* javaslang project
* added pattern matcher code
* refactored comparator code for TreeMap
* refactored Comparator code
