System.err.println(metamodelUri + "#" + typename
+ " is a reference not an attribute, aborting operation: removeIndexedAttribute");
listener.changeFailure();
} else {
if (metadata.length == 6) {
<BUG>if (metadata[5] == "t") {
metadata[5] = "f";</BUG>
typenode.setProperty(attributename, metadata);
String indexname = metamodelUri + "##" + typename + "##" + attributename;
if (graph.nodeIndexExists(indexname)) {

System.err.println(metamodelUri + "#" + typename
+ " is a reference not an attribute, aborting operation: removeIndexedAttribute");
listener.changeFailure();
} else {
if (metadata.length == 6) {
if ("t".equals(metadata[5])) {
metadata[5] = "f";
typenode.setProperty(attributename, metadata);
String indexname = metamodelUri + "##" + typename + "##" + attributename;
if (graph.nodeIndexExists(indexname)) {
