in commons-vfs2/src/main/java/org/apache/commons/vfs2/util/Os.java [231:241]
public static boolean isOs(final OsFamily family, final String name, final String arch, final String version) {
if (family != null || name != null || arch != null || version != null) {
final boolean isFamily = familyMatches(family);
final boolean isName = nameMatches(name);
final boolean isArch = archMatches(arch);
final boolean isVersion = versionMatches(version);
return isFamily && isName && isArch && isVersion;
}
return false;
}