in log4j-transform-maven-plugin/src/main/java/org/apache/logging/log4j/transform/maven/scan/SimpleInclusionScanner.java [66:76]
private static Set<Path> scanForSources(Path sourceDir, Set<String> sourceIncludes, Set<String> sourceExcludes) {
final DirectoryScanner scanner = new DirectoryScanner();
scanner.setBasedir(sourceDir.toFile());
scanner.setIncludes(sourceIncludes.toArray(EMPTY_ARRAY));
scanner.setExcludes(sourceExcludes.toArray(EMPTY_ARRAY));
scanner.scan();
return Stream.of(scanner.getIncludedFiles())
.map(sourceDir::resolve)
.collect(Collectors.toSet());
}