in src/main/java/org/apache/maven/plugins/ear/EarMojo.java [560:568]
private static File getEarFile(String basedir, String finalName, String classifier) {
if (classifier == null) {
classifier = "";
} else if (classifier.trim().length() > 0 && !classifier.startsWith("-")) {
classifier = "-" + classifier;
}
return new File(basedir, finalName + classifier + ".ear");
}