* 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
* added example code for PCollections
* update pom
* refactored tests for PCollections
* spring security xml config
* spring security xml config
* Quartz example for article: Introduction to Quartz
* Adding new module for Java Quartz
* Removing Quartz code from jee7 module
* Fixing folder structure
* Add NDC and JBoss Logging to the demo application
* NDC for Log4j, Log4j2 and JBoss Logging
* Simplify NDC example by making it a single operation instead of two
* Make NDC example as RestController, Use JBoss Logging only as a logging bridge
* Fix merge conflicts in pull request - log-mdc pom.xml updated
* BAEL-445 Update to Spring security SpEL example
* BAEL-445: Change tabs to spaces in the updated code
* BAEL-245: Add Enum Serialization exmaple
* BAEL-245: Remove the folder jackson/src/test/java/com/baeldung/jackson/dtos/withEnum as the example is not used anymore
* Add more enum serialization examples to align with previous example and prevent build fail
* BAEL-611: Minor formatting changes
* BAEL-611: Update Test case method names
* BAEL-611 Add JAX-WS client and JUnit Test
* Add NDC and JBoss Logging to the demo application
* NDC for Log4j, Log4j2 and JBoss Logging
* Simplify NDC example by making it a single operation instead of two
* Make NDC example as RestController, Use JBoss Logging only as a logging bridge
* Fix merge conflicts in pull request - log-mdc pom.xml updated
* BAEL-445 Update to Spring security SpEL example
* BAEL-445: Change tabs to spaces in the updated code
* BAEL-245: Add Enum Serialization exmaple
* BAEL-245: Remove the folder jackson/src/test/java/com/baeldung/jackson/dtos/withEnum as the example is not used anymore
* Add more enum serialization examples to align with previous example and prevent build fail
* BAEL-611: Minor formatting changes
* BAEL-611: Update Test case method names