in src/main/java/org/apache/sling/resourcemerger/impl/picker/SearchPathBasedResourcePicker.java [124:134]
public String getMergedResourcePath(final String relativePath) {
if (relativePath == null) {
throw new IllegalArgumentException("Provided relative path is null");
}
if (relativePath.startsWith("/")) {
throw new IllegalArgumentException("Provided path is not a relative path");
}
return mergeRootPath + "/" + relativePath;
}