in src/main/java/org/apache/uima/json/jsoncas2/ser/FeatureStructureDeserializer.java [247:257]
private FeatureStructure createFS(JsonParser aParser, DeserializationContext aCtxt, int aFsId,
CAS aCas) throws IOException {
String typeName = aParser.getValueAsString();
TypeSystem ts = aCas.getTypeSystem();
Type t = ts.getType(typeName);
if (t == null) {
throw new JsonParseException(aParser, "Type not found in type system: " + typeName);
}
return aCas.createFS(t);
}