Program: 24688
Project: 24688
Buggy source:
/** 
 * @param stepToTeach The ViewId of the step to teach
 * @param nextPage A generated navigation ID for the page to be called once the user is finished with this page.
 */
public TeachStepPane(String stepToTeach,final String nextPage){
  super();
  pageMessages=(TeachStepMessages)GWT.create(TeachStepMessages.class);
  mainLayout=new VerticalPanel();
  mainLayout.setStyleName("String_Node_Str");
  TeachMessages messages=null;
  List<Roles> responsibilities=new ArrayList<Roles>();
  List<String> contents=new ArrayList<String>();
  if (stepToTeach.equals(HistoryManager.ViewId.assetsAndGoals)) {
    messages=(IdentifyAssetsAndGoalsMessages)GWT.create(IdentifyAssetsAndGoalsMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.selectSecurityElicitationTechnique)) {
    messages=(SelectSecurityTechniqueMessages)GWT.create(SelectSecurityTechniqueMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.riskAssessment)) {
    messages=(SecurityRiskAssessmentMessages)GWT.create(SecurityRiskAssessmentMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.elicitSecurityRequirements)) {
    messages=(ElicitSecurityRequirementsMessages)GWT.create(ElicitSecurityRequirementsMessages.class);
    responsibilities.add(Roles.Contractor);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.contractorResponsibilities());
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.categorizeRequirements)) {
    messages=(CategorizeRequirementsMessages)GWT.create(CategorizeRequirementsMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.agreeOnDefinitions)) {
    messages=(AgreeOnDefinitionsMessages)GWT.create(AgreeOnDefinitionsMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.prioritizeRequirements)) {
    messages=(PrioritizeMessages)GWT.create(PrioritizeMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.collectArtifacts)) {
    messages=(CollectArtifactsMessages)GWT.create(CollectArtifactsMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.inspectRequirements)) {
    messages=(InspectRequirementsMessages)GWT.create(InspectRequirementsMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewOfRequirementsByAcquisitionOrganization)) {
    messages=(ReviewOfRequirementsByAcquisitionMessages)GWT.create(ReviewOfRequirementsByAcquisitionMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewPackages)) {
    messages=(ReviewPackagesMessages)GWT.create(ReviewPackagesMessages.class);
    responsibilities.add(Roles.COTS_Vendor);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.cotsResponsibilities());
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewAndFinalizeRequirements)) {
    messages=(ReviewAndFinalizeRequirementsMessages)GWT.create(ReviewAndFinalizeRequirementsMessages.class);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.performTradeoffAnalysis)) {
    messages=(PerformTradeoffAnalysisMessages)GWT.create(PerformTradeoffAnalysisMessages.class);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.finalProductSelection)) {
    messages=(FinalProductSelectionMessages)GWT.create(FinalProductSelectionMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else {
    History.newItem(nextPage);
  }
  this.mainLayout.add(this.createTitle(messages.title()));
  this.mainLayout.add(this.createPurpose(messages.purpose()));
  this.mainLayout.add(this.createResponsibilities(responsibilities,contents));
  this.mainLayout.add(this.createExitCriteria(messages.exitCriteria()));
  this.mainLayout.add(this.createWebisteInfo(messages.webHint()));
  Button goButton=new Button(pageMessages.nextStep());
  goButton.setHeight("String_Node_Str");
  goButton.setWidth("String_Node_Str");
  goButton.addClickHandler(new ClickHandler(){
    public void onClick(    ClickEvent event){
      History.newItem(nextPage);
    }
  }
);
  mainLayout.add(goButton);
  mainLayout.setWidth("String_Node_Str");
  initWidget(mainLayout);
}

Fixed version (ground truth):
/** 
 * @param stepToTeach The ViewId of the step to teach
 * @param nextPage A generated navigation ID for the page to be called once the user is finished with this page.
 */
public TeachStepPane(String stepToTeach,final String nextPage){
  super();
  pageMessages=(TeachStepMessages)GWT.create(TeachStepMessages.class);
  mainLayout=new VerticalPanel();
  mainLayout.setStyleName("String_Node_Str");
  TeachMessages messages=null;
  List<Roles> responsibilities=new ArrayList<Roles>();
  List<String> contents=new ArrayList<String>();
  if (stepToTeach.equals(HistoryManager.ViewId.assetsAndGoals)) {
    messages=(IdentifyAssetsAndGoalsMessages)GWT.create(IdentifyAssetsAndGoalsMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.selectSecurityElicitationTechnique)) {
    messages=(SelectSecurityTechniqueMessages)GWT.create(SelectSecurityTechniqueMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.riskAssessment)) {
    messages=(SecurityRiskAssessmentMessages)GWT.create(SecurityRiskAssessmentMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.elicitSecurityRequirements)) {
    messages=(ElicitSecurityRequirementsMessages)GWT.create(ElicitSecurityRequirementsMessages.class);
    responsibilities.add(Roles.Contractor);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.contractorResponsibilities());
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.agreeOnDefinitions)) {
    messages=(AgreeOnDefinitionsMessages)GWT.create(AgreeOnDefinitionsMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.prioritizeRequirements)) {
    messages=(PrioritizeMessages)GWT.create(PrioritizeMessages.class);
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewOfRequirementsByAcquisitionOrganization)) {
    messages=(ReviewOfRequirementsByAcquisitionMessages)GWT.create(ReviewOfRequirementsByAcquisitionMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewPackages)) {
    messages=(ReviewPackagesMessages)GWT.create(ReviewPackagesMessages.class);
    responsibilities.add(Roles.COTS_Vendor);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.cotsResponsibilities());
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.reviewAndFinalizeRequirements)) {
    messages=(ReviewAndFinalizeRequirementsMessages)GWT.create(ReviewAndFinalizeRequirementsMessages.class);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.performTradeoffAnalysis)) {
    messages=(PerformTradeoffAnalysisMessages)GWT.create(PerformTradeoffAnalysisMessages.class);
    responsibilities.add(Roles.Security_Specialist);
    contents.add(messages.securityResponsibilities());
  }
 else   if (stepToTeach.equals(HistoryManager.ViewId.finalProductSelection)) {
    messages=(FinalProductSelectionMessages)GWT.create(FinalProductSelectionMessages.class);
    responsibilities.add(Roles.Acquisition_Organization_Engineer);
    contents.add(messages.aoeResponsibilities());
  }
 else {
    History.newItem(nextPage);
  }
  this.mainLayout.add(this.createTitle(messages.title()));
  this.mainLayout.add(this.createPurpose(messages.purpose()));
  this.mainLayout.add(this.createResponsibilities(responsibilities,contents));
  this.mainLayout.add(this.createExitCriteria(messages.exitCriteria()));
  this.mainLayout.add(this.createWebisteInfo(messages.webHint()));
  Button goButton=new Button(pageMessages.nextStep());
  goButton.setHeight("String_Node_Str");
  goButton.setWidth("String_Node_Str");
  goButton.addClickHandler(new ClickHandler(){
    public void onClick(    ClickEvent event){
      History.newItem(nextPage);
    }
  }
);
  mainLayout.add(goButton);
  mainLayout.setWidth("String_Node_Str");
  initWidget(mainLayout);
}