@Override
      public void componentShown(ComponentEvent e) {
        // componentResized not called when adding to opened tool window.
        // Seems to be BUG#4765299, however I failed to create same code to reproduce it.
        // To reproduce it with IDEA: 1. remove this method, 2. Start any Ant task, 3. Keep message window open 4. start Ant task again.
        resetHeightCache(tree, defaultRenderer, renderer);
      }
@Override
      public void componentShown(ComponentEvent e)