Program: 102199
Project: 102199
Buggy source:
/** 
 * @see org.eclipse.ui.wizards.newresource.BasicNewProjectResourceWizard#performFinish()
 * @since 4.0
 */
@Override public boolean performFinish(){
  IWizardPage mainPage=super.getPage("String_Node_Str");
  if (mainPage instanceof WizardNewProjectCreationPage) {
    String projName=((WizardNewProjectCreationPage)mainPage).getProjectName();
    final ValidationResultImpl result=new ValidationResultImpl(projName);
    checkInvalidChars(result,projName,UiConstants.NamingAttributes.VALID_PROJECT_CHARS);
    if (result.hasProblems()) {
      String eMsg=Util.getString("String_Node_Str") + '\n' + result.getProblems()[0].getMessage();
      String eTitle=Util.getString("String_Node_Str");
      MessageDialog.openWarning(getShell(),eTitle,eMsg);
      return false;
    }
    checkReservedProjName(result,projName);
    if (result.hasProblems()) {
      String eMsg=Util.getString("String_Node_Str") + '\n' + result.getProblems()[0].getMessage();
      String eTitle=Util.getString("String_Node_Str");
      MessageDialog.openWarning(getShell(),eTitle,eMsg);
      return false;
    }
  }
  super.performFinish();
  final IProject project=getNewProject();
  if (project == null)   return false;
  try {
    final IProjectDescription desc=project.getDescription();
    desc.setNatureIds(MODEL_NATURES);
    if (ProductCustomizerMgr.getInstance() != null) {
      String productName=ProductCustomizerMgr.getInstance().getProductName();
      if (!CoreStringUtil.isEmpty(productName)) {
        desc.setComment(productName + "String_Node_Str" + ModelerCore.ILicense.VERSION);
      }
    }
    project.setDescription(desc,null);
    if (designerProperties != null) {
      DesignerPropertiesUtil.setProjectName(designerProperties,project.getName());
    }
    createFolders(project);
    refreshModelExplorerResourceNavigatorTree();
    return true;
  }
 catch (  final CoreException err) {
    Util.log(IStatus.ERROR,err,err.getMessage());
    return false;
  }
}

Fixed version (ground truth):
/** 
 * @see org.eclipse.ui.wizards.newresource.BasicNewProjectResourceWizard#performFinish()
 * @since 4.0
 */
@Override public boolean performFinish(){
  IWizardPage mainPage=super.getPage("String_Node_Str");
  if (mainPage instanceof WizardNewProjectCreationPage) {
    String projName=((WizardNewProjectCreationPage)mainPage).getProjectName();
    final ValidationResultImpl result=new ValidationResultImpl(projName);
    checkInvalidChars(result,projName,UiConstants.NamingAttributes.VALID_PROJECT_CHARS);
    if (result.hasProblems()) {
      String eMsg=Util.getString("String_Node_Str") + '\n' + result.getProblems()[0].getMessage();
      String eTitle=Util.getString("String_Node_Str");
      MessageDialog.openWarning(getShell(),eTitle,eMsg);
      return false;
    }
    checkReservedProjName(result,projName);
    if (result.hasProblems()) {
      String eMsg=Util.getString("String_Node_Str") + '\n' + result.getProblems()[0].getMessage();
      String eTitle=Util.getString("String_Node_Str");
      MessageDialog.openWarning(getShell(),eTitle,eMsg);
      return false;
    }
  }
  super.performFinish();
  final IProject project=getNewProject();
  if (project == null)   return false;
  try {
    final IProjectDescription desc=project.getDescription();
    desc.setNatureIds(MODEL_NATURES);
    if (ProductCustomizerMgr.getInstance() != null) {
      String productName=ProductCustomizerMgr.getInstance().getProductName();
      if (!CoreStringUtil.isEmpty(productName)) {
        desc.setComment(productName + "String_Node_Str" + ModelerCore.ILicense.VERSION);
      }
    }
    project.setDescription(desc,null);
    if (designerProperties != null) {
      DesignerPropertiesUtil.setProjectName(designerProperties,project.getName());
      DesignerPropertiesUtil.setProjectStatus(this.designerProperties,IPropertiesContext.OPEN_PROJECTS_EXIST);
    }
    createFolders(project);
    refreshModelExplorerResourceNavigatorTree();
    return true;
  }
 catch (  final CoreException err) {
    Util.log(IStatus.ERROR,err,err.getMessage());
    return false;
  }
}