spring-projects/spring-boot — pull request #2035 by davison (2014-12-01 16:05:24+00:00)
Title: Allow external instantiation of the ErrorPageFilter class.

In some edge cases, the ErrorPageFilter may be instantiated by a container
or configured in a web.xml. A package private class causes
java.lang.IllegalAccessException to be thrown in these cases. See the
following:

#2026
#993

Fixes #2026.