{
        GridLayout layout = new GridLayout();
        layout.numColumns = 1;
        layout.verticalSpacing = 12;
        composite.setLayout(layout);

        GridData data = new GridData();
        data.verticalAlignment = GridData.FILL;
        data.grabExcessVerticalSpace = true;
        data.horizontalAlignment = GridData.FILL;
        composite.setLayoutData(data);
      }