Add explicit type witness to Arrays.sort calls to avoid ECJ type
inference ambiguity with Comparator<? super T> wildcards. The PR's
change to use BUILD_RELEVANT_NAMESPACES in addTransitiveDependenciesWithForbiddenAccess
changes the classpath composition, exposing a stricter ECJ type
inference behavior for lambdas with explicitly typed parameters.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>