in src/main/java/org/apache/maven/plugins/source/AbstractSourceJarMojo.java [420:428]
protected void addDirectory(Archiver archiver, File sourceDirectory, String[] pIncludes, String[] pExcludes)
throws MojoExecutionException {
try {
getLog().debug("add directory " + sourceDirectory + " to archiver");
archiver.addFileSet(DefaultFileSet.fileSet(sourceDirectory).includeExclude(pIncludes, pExcludes));
} catch (ArchiverException e) {
throw new MojoExecutionException("Error adding directory to source archive.", e);
}
}