in src/main/java/org/apache/sling/superimposing/impl/SuperimposingResourceProviderImpl.java [191:201]
static String reverseMapPath(SuperimposingResourceProviderImpl provider, String path) {
final String mappedPath;
if (path.startsWith(provider.sourcePathPrefix)) {
mappedPath = StringUtils.replaceOnce(path, provider.sourcePathPrefix, provider.rootPrefix);
} else if (path.equals(provider.sourcePath)) {
mappedPath = provider.rootPath;
} else {
mappedPath = null;
}
return mappedPath;
}