/src/main/java/net/finmath/montecarlo/interestrate/products/indices/PerformanceIndex.java
if( underlyingNames2 == null) {
if ( underlyingNames2 != null ) {
return denominatorIndex; } @Override public Set<String> queryUnderlyings() { Set<String> underlyingNames = numeratorIndex.queryUnderlyings(); final Set<String> underlyingNames2 = denominatorIndex.queryUnderlyings(); <extra_id_0> if(underlyingNames != null) { underlyingNames.addAll(underlyingNames2); } else { underlyingNames = underlyingNames2; } }