<BUG>ProgramVariantValidationResult validationResult = null;public ProgramVariant(){</BUG><CONTEXT>protected CompilationResult compilationResult = null;protected boolean isSolution = false;protected int lastGenAnalyzed = 0;protected Date bornDate = new Date();protected List<CtClass> modifiedClasses = new ArrayList<CtClass>();<extra_id_0>modificationPoints = new ArrayList<ModificationPoint>();operations = new HashMap<Integer,List<OperatorInstance>>();}</CONTEXT>
public ProgramVariant(){