Program: 96201
Project: 96201
Buggy source:
/** 
 * initializes the job configuration object after loading project validates if choosen configuration is valid
 */
public void initAndValidate(){
  Validate.notNull(m_project,NLS.bind(Messages.JobConfigurationValidateProjectExist,new Object[]{String.valueOf(m_projectName),String.valueOf(m_projectMajor),String.valueOf(m_projectMinor)}));
  for (  ITestSuitePO ts : TestSuiteBP.getListOfTestSuites(getProject())) {
    if (ts.getName().equals(m_testSuiteName)) {
      setTestSuite(ts);
      break;
    }
  }
  Validate.isTrue((getTestSuite() != null),Messages.JobConfigurationValidateTestSuiteExist);
  for (  ITestJobPO tj : TestJobBP.getListOfTestJobs(getProject())) {
    if (tj.getName().equals(m_testJobName)) {
      m_testJob=tj;
    }
  }
  if (getTestSuite() != null) {
    Validate.notNull(getTestSuite().getAut(),Messages.JobConfigurationValidateAnyAut);
    IAUTMainPO aut=getTestSuite().getAut();
    if (m_autConfigName != null) {
      for (      IAUTConfigPO config : aut.getAutConfigSet()) {
        if (m_autConfigName.equals(config.getName())) {
          m_autConfig=config;
        }
      }
      Validate.notNull(m_autConfig,Messages.JobConfigurationValidateAutConf);
    }
    List<Locale> autLocales=aut.getLangHelper().getLanguageList();
    Validate.isTrue(autLocales.size() != 0,Messages.NoLanguageConfiguredInChoosenAUT);
    if (getLanguage() == null) {
      if (autLocales.size() == 1) {
        setLanguage(autLocales.get(0));
      }
 else {
        setLanguage(getProject().getDefaultLanguage());
      }
    }
    Validate.isTrue(autLocales.contains(getLanguage()),Messages.SpecifiedLanguageNotSupported);
  }
}

Fixed version (ground truth):
/** 
 * initializes the job configuration object after loading project validates if choosen configuration is valid
 */
public void initAndValidate(){
  Validate.notNull(m_project,NLS.bind(Messages.JobConfigurationValidateProjectExist,new Object[]{String.valueOf(m_projectName),String.valueOf(m_projectMajor),String.valueOf(m_projectMinor)}));
  for (  String name : m_testSuiteNames) {
    for (    ITestSuitePO ts : TestSuiteBP.getListOfTestSuites()) {
      if (ts.getName().equals(name)) {
        m_testSuites.add(ts);
        break;
      }
    }
  }
  Validate.isTrue((m_testSuiteNames.size() == m_testSuites.size()),Messages.JobConfigurationValidateTestSuiteExist);
  for (  ITestJobPO tj : TestJobBP.getListOfTestJobs()) {
    if (tj.getName().equals(m_testJobName)) {
      m_testJob=tj;
    }
  }
  if (!m_testSuites.isEmpty()) {
    for (    ITestSuitePO ts : m_testSuites) {
      Validate.notNull(ts.getAut(),Messages.JobConfigurationValidateAnyAut);
    }
    IAUTMainPO aut=getActualTestSuite().getAut();
    if (m_autConfigName != null) {
      for (      IAUTConfigPO config : aut.getAutConfigSet()) {
        if (m_autConfigName.equals(config.getName())) {
          m_autConfig=config;
        }
      }
      Validate.notNull(m_autConfig,Messages.JobConfigurationValidateAutConf);
    }
    List<Locale> autLocales=aut.getLangHelper().getLanguageList();
    Validate.isTrue(autLocales.size() != 0,Messages.NoLanguageConfiguredInChoosenAUT);
    if (getLanguage() == null) {
      if (autLocales.size() == 1) {
        setLanguage(autLocales.get(0));
      }
 else {
        setLanguage(getProject().getDefaultLanguage());
      }
    }
    Validate.isTrue(autLocales.contains(getLanguage()),Messages.SpecifiedLanguageNotSupported);
  }
}