in src/main/java/com/googlesource/gerrit/plugins/saml/SamlWebFilter.java [255:266]
private static List<String> extractAttributeValues(SAML2Profile user, String attrName) {
final Object value = user.getAttribute(attrName);
if (value instanceof String) {
return Collections.singletonList((String) value);
} else if (value instanceof String[]) {
return Arrays.asList((String[]) value);
} else if (value instanceof List) {
return (List<String>) value;
} else {
return null;
}
}