in sdmx30-infomodel/src/main/java/com/epam/jsdmx/infomodel/sdmx30/HierarchyAssociationImpl.java [94:101]
public int hashCode() {
final int PRIME = 31;
int result = super.hashCode();
result = PRIME * result + (linkedHierarchy != null ? linkedHierarchy.hashCode() : 0);
result = PRIME * result + (linkedObject != null ? linkedObject.hashCode() : 0);
result = PRIME * result + (contextObject != null ? contextObject.hashCode() : 0);
return result;
}