Program: 123194
Project: 123194
Buggy source:
@Override public void createPartControl(Composite parent){
  this.parent=parent;
  CorePlugin.getDefault().getRepositoryService().getProxyRepositoryFactory().addPropertyChangeListener(this);
  parent.setLayout(new FillLayout());
  viewer=new TreeViewer(parent,SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL| SWT.BORDER| SWT.FULL_SELECTION);
  final Tree tree=viewer.getTree();
  tree.setHeaderVisible(true);
  tree.setLinesVisible(true);
  viewer.addSelectionChangedListener(new ISelectionChangedListener(){
    public void selectionChanged(    SelectionChangedEvent event){
      IStructuredSelection selection=(IStructuredSelection)event.getSelection();
      Problem problem=(Problem)selection.getFirstElement();
      if (problem != null && problem.isConcrete()) {
        if (problem.getNodeName() != null) {
          selectInDesigner(problem.getJobInfo(),problem.getNodeName());
        }
 else         if (problem instanceof TalendProblem) {
          selectInRoutine((TalendProblem)problem);
        }
      }
    }
  }
);
  TreeColumn column1=new TreeColumn(tree,SWT.CENTER);
  column1.setText(Messages.getString("String_Node_Str"));
  column1.setWidth(400);
  column1.setAlignment(SWT.LEFT);
  column1.setResizable(true);
  TreeColumn column2=new TreeColumn(tree,SWT.LEFT);
  column2.setText(Messages.getString("String_Node_Str"));
  column2.setWidth(400);
  column2.setResizable(true);
  ProblemViewProvider provider=new ProblemViewProvider();
  viewer.setLabelProvider(provider);
  viewer.setContentProvider(provider);
  resetContent();
  IActionBars actionBars=getViewSite().getActionBars();
  initMenu(actionBars.getMenuManager());
}

Fixed version (ground truth):
@Override public void createPartControl(Composite parent){
  this.parent=parent;
  CorePlugin.getDefault().getRepositoryService().getProxyRepositoryFactory().addPropertyChangeListener(this);
  parent.setLayout(new FillLayout());
  viewer=new TreeViewer(parent,SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL| SWT.BORDER| SWT.FULL_SELECTION);
  final Tree tree=viewer.getTree();
  tree.setHeaderVisible(true);
  tree.setLinesVisible(true);
  viewer.addSelectionChangedListener(new ISelectionChangedListener(){
    @Override public void selectionChanged(    SelectionChangedEvent event){
      IStructuredSelection selection=(IStructuredSelection)event.getSelection();
      Problem problem=(Problem)selection.getFirstElement();
      if (problem != null && problem.isConcrete()) {
        if (problem.getNodeName() != null) {
          selectInDesigner(problem.getJobInfo(),problem.getNodeName());
        }
 else         if (problem instanceof TalendProblem) {
          selectInRoutine((TalendProblem)problem);
        }
      }
    }
  }
);
  TreeColumn column1=new TreeColumn(tree,SWT.CENTER);
  column1.setText(Messages.getString("String_Node_Str"));
  column1.setWidth(400);
  column1.setAlignment(SWT.LEFT);
  column1.setResizable(true);
  TreeColumn column2=new TreeColumn(tree,SWT.LEFT);
  column2.setText(Messages.getString("String_Node_Str"));
  column2.setWidth(400);
  column2.setResizable(true);
  ProblemViewProvider provider=new ProblemViewProvider();
  viewer.setLabelProvider(provider);
  viewer.setContentProvider(provider);
  resetContent();
  IActionBars actionBars=getViewSite().getActionBars();
  initMenu(actionBars.getMenuManager());
}