Bug 381443 - [compiler][null] Allow parameter widening from @NonNull to
unannotated
Part 2: re-introduce as configurable warning
Fix for bug 385154 - [CBI] JDT core needs a way to produce ecj jar
during tycho builds
Bug 376263: Bogus "Potential null pointer access" warning
Bug 393719 - [compiler] inconsistent warnings on iteration variables
Fixed 397888.
Fix for bug 398490 - Don't show source for .class file outside build
path
Fix for bug 398490 - Updating tests
Fix for bug 397818 - An IndexLocation is not created properly if the
pre-build indexes are located in a directory with a space
Fix for bug 397818 - Adding regression tests
Fix for bug 398272 - PackageFragment.getAttachedJavadoc throws
JavaModelException when there is no Javadoc.
Combined fix for
Bug 331649 - [compiler][null] consider null annotations for fields
Bug 382789 - [compiler][null] warn when syntactically-nonnull
  expression is compared against null
Bug 380896 - [compiler][null] Enum constants not recognised as being
  NonNull.
Bug 383368 - [compiler][null] syntactic null analysis for field
  references
Bug 388630 - @NonNull diagnostics at line 0