The Spring portfolio is changing to use <inception-year>-present in
the copyright headers to simplify keeping headers up to date. This
commit updates the headers and the checkstyle accordingly.
The commit updated etc/checkstyle/header.txt
It also updated the copyright headers using the following find/replace:
Find: (Copyright \d{4})\s*(\-\d{4})? the original author or authors.
Replace: Copyright 2004-present the original author or authors.
Closes gh-17633
Added trustResolver, roleHierarchy, permissionEvaluator, defaultRolePrefix
fields to SecurityEvaluationContextExtension along with setter methods to override defaults.
Closes gh-11196
Remove all blank lines from test code so that test methods are
visually grouped together. This generally helps to make the test
classes easer to scan, however, the "given" / "when" / "then"
blocks used by some tests are now not as easy to discern.
Issue gh-8945
Add an additional lines after the copyright header and before the
`package` declaration. This aligns with the style used by Spring
Framework.
Issue gh-8945
Apply an Eclipse cleanup rules to ensure that fields are always accessed
using `this.`. This aligns with the style used by Spring Framework and
helps users quickly see the difference between a local and member
variable.
Issue gh-8945
