Program: 61594
Project: 61594
Buggy source:
/** 
 * Compiles and validates a created variant.
 * @param parentVariant
 * @param generation
 * @return true if the variant is a solution. False otherwise.
 * @throws Exception
 */
public boolean processCreatedVariant(ProgramVariant programVariant,int generation) throws Exception {
  URL[] originalURL=projectFacade.getURLforMutation(ProgramVariant.DEFAULT_ORIGINAL_VARIANT);
  CompilationResult compilation=mutatorSupporter.compileOnMemoryProgramVariant(programVariant,originalURL);
  boolean childCompiles=compilation.compiles();
  programVariant.setCompilation(compilation);
  String srcOutput=projectFacade.getInDirWithPrefix(programVariant.currentMutatorIdentifier());
  if (ConfigurationProperties.getPropertyBool("String_Node_Str")) {
    log.debug("String_Node_Str" + programVariant.getId() + "String_Node_Str"+ srcOutput);
    mutatorSupporter.saveSourceCodeOnDiskProgramVariant(programVariant,srcOutput);
  }
  if (childCompiles) {
    log.debug("String_Node_Str" + programVariant.getId());
    currentStat.numberOfRightCompilation++;
    currentStat.setCompiles(programVariant.getId());
    boolean validInstance=validateInstance(programVariant);
    log.debug("String_Node_Str" + validInstance + "String_Node_Str"+ programVariant.getFitness());
    if (validInstance) {
      log.info("String_Node_Str" + programVariant.getId());
      saveStaticSucessful(generation);
      if (ConfigurationProperties.getPropertyBool("String_Node_Str")) {
        mutatorSupporter.saveSourceCodeOnDiskProgramVariant(programVariant,srcOutput);
        mutatorSupporter.saveSolutionData(programVariant,srcOutput,generation);
      }
      return true;
    }
  }
 else {
    log.debug("String_Node_Str" + programVariant.getId() + "String_Node_Str");
    currentStat.numberOfFailingCompilation++;
    currentStat.setNotCompiles(programVariant.getId());
    programVariant.setFitness(this.populationControler.getMaxFitnessValue());
  }
  return false;
}

Fixed version (ground truth):
/** 
 * Compiles and validates a created variant.
 * @param parentVariant
 * @param generation
 * @return true if the variant is a solution. False otherwise.
 * @throws Exception
 */
public boolean processCreatedVariant(ProgramVariant programVariant,int generation) throws Exception {
  URL[] originalURL=projectFacade.getURLforMutation(ProgramVariant.DEFAULT_ORIGINAL_VARIANT);
  CompilationResult compilation=mutatorSupporter.compileOnMemoryProgramVariant(programVariant,originalURL);
  boolean childCompiles=compilation.compiles();
  programVariant.setCompilation(compilation);
  String srcOutput=projectFacade.getInDirWithPrefix(programVariant.currentMutatorIdentifier());
  if (ConfigurationProperties.getPropertyBool("String_Node_Str")) {
    log.debug("String_Node_Str" + programVariant.getId() + "String_Node_Str"+ srcOutput);
    mutatorSupporter.saveSourceCodeOnDiskProgramVariant(programVariant,srcOutput);
  }
  if (childCompiles) {
    log.debug("String_Node_Str" + programVariant.getId());
    currentStat.numberOfRightCompilation++;
    currentStat.setCompiles(programVariant.getId());
    boolean validInstance=validateInstance(programVariant);
    log.debug("String_Node_Str" + validInstance + "String_Node_Str"+ programVariant.getFitness());
    if (validInstance) {
      log.info("String_Node_Str" + programVariant.getId());
      saveStaticSucessful(generation);
      if (ConfigurationProperties.getPropertyBool("String_Node_Str")) {
        mutatorSupporter.saveSourceCodeOnDiskProgramVariant(programVariant,srcOutput);
        mutatorSupporter.saveSolutionData(programVariant,srcOutput,generation);
      }
      return true;
    }
  }
 else {
    log.debug("String_Node_Str" + programVariant.getId() + "String_Node_Str"+ compilation.getErrorList());
    currentStat.numberOfFailingCompilation++;
    currentStat.setNotCompiles(programVariant.getId());
    programVariant.setFitness(this.populationControler.getMaxFitnessValue());
  }
  return false;
}