Program: 140669
Project: 140669
Buggy source:
@SuppressWarnings("String_Node_Str") protected void openFolderSelectionDialog(String projectName,String folderName){
  final Class[] acceptedClasses=new Class[]{IProject.class,IFolder.class};
  IWorkspaceRoot root=ResourcesPlugin.getWorkspace().getRoot();
  ArrayList rejectedElements=new ArrayList();
  if (projectName != null) {
    IProject theProject=root.getProject(projectName);
    IProject[] allProjects=root.getProjects();
    for (int i=0; i < allProjects.length; i++) {
      if (!allProjects[i].equals(theProject)) {
        rejectedElements.add(allProjects[i]);
      }
    }
    if (folderName != null) {
      try {
        IResource[] resourse=theProject.members();
        for (        IResource one : resourse) {
          if (one.getType() == IResource.FOLDER && !one.getName().equals(folderName)) {
            rejectedElements.add(one);
          }
        }
      }
 catch (      Exception e) {
        log.error(e,e);
      }
    }
  }
  ViewerFilter filter=new TypedViewerFilter(acceptedClasses,rejectedElements.toArray());
  ILabelProvider lp=new WorkbenchLabelProvider();
  ITreeContentProvider cp=new WorkbenchContentProvider();
  FolderSelectionDialog dialog=new FolderSelectionDialog(getShell(),lp,cp);
  dialog.setTitle("String_Node_Str");
  dialog.setMessage("String_Node_Str");
  dialog.setInput(root);
  dialog.addFilter(filter);
  dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
  if (dialog.open() == Window.OK) {
    Object elements=dialog.getResult()[0];
    IResource elem=(IResource)elements;
    if (elem instanceof IFolder) {
      pathText.setText(elem.getFullPath().toString());
      FolderProvider provider=new FolderProvider();
      provider.setFolderResource((IFolder)elem);
      getConnectionParams().setFolderProvider(provider);
    }
  }
}

Fixed version (ground truth):
@SuppressWarnings("String_Node_Str") protected void openFolderSelectionDialog(String projectName,String folderName){
  final Class[] acceptedClasses=new Class[]{IProject.class,IFolder.class};
  IWorkspaceRoot root=ResourcesPlugin.getWorkspace().getRoot();
  ArrayList rejectedElements=new ArrayList();
  if (projectName != null) {
    IProject theProject=root.getProject(projectName);
    IProject[] allProjects=root.getProjects();
    for (int i=0; i < allProjects.length; i++) {
      if (!allProjects[i].equals(theProject)) {
        rejectedElements.add(allProjects[i]);
      }
    }
    if (folderName != null) {
      try {
        IResource[] resourse=theProject.members();
        for (        IResource one : resourse) {
          if (one.getType() == IResource.FOLDER && !one.getName().equals(folderName)) {
            rejectedElements.add(one);
          }
        }
      }
 catch (      Exception e) {
        log.error(e,e);
      }
    }
  }
  ViewerFilter filter=new TypedViewerFilter(acceptedClasses,rejectedElements.toArray());
  ILabelProvider lp=new WorkbenchLabelProvider();
  ITreeContentProvider cp=new WorkbenchContentProvider();
  FolderSelectionDialog dialog=new FolderSelectionDialog(getShell(),lp,cp);
  dialog.setTitle("String_Node_Str");
  dialog.setMessage("String_Node_Str");
  dialog.setInput(root);
  dialog.addFilter(filter);
  dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
  if (dialog.open() == Window.OK) {
    Object elements=dialog.getResult()[0];
    IResource elem=(IResource)elements;
    if (elem instanceof IFolder) {
      pathText.setText(elem.getFullPath().toString());
      getConnectionParams().getFolderProvider().setFolderResource((IFolder)elem);
    }
  }
}