* Add custom license header style in order to comply with Google's Checkstyle format
* Update license headers to comply with Google's Checkstyle format
* Moved java XML and annotations dependencies to project level instead
of as profiles
* Set compiler language level to 11
* Removed jdk8 from travis build
* Kept java level 8 in naked-objects/dom for datanucleus enhancer, for
now.
* Maven profiles to support jdk 11 builds. #948
Added maven profiles activated by jdk 11, wich will not break java 8 support.
Bumped lombok and datanucleus enhancer as the old versions dont work with 11.
* Fixed PMD issue when building naked-objects
* Fixed the eip modules with xml dependencies.
Previous dependency relaxing commit causes xml libs to go missing from
some modules that actually needed them
* Made minor changes in some patterns such as removed throws clause where not needed, changed incorrect order of arguments in assertEquals
* Minor refactorings and code style changes. 1) Removed several use of raw types 2) Removed unnecessary throws clauses 3) Used lambda expressions wherever applicable 4) Used apt assertion methods for readability 5) Use of try with resources wherever applicable 6) Corrected incorrect order of assertXXX arguments
* Removed unused import from Promise
* Addressed review comments
* Addressed checkstyle issue
