Bug 58921 Texts created with unsupported styles
- org.eclipse.jdt.internal.ui.text.AbstractInformationControl.createFilterText creates a Text with style SWT.FLAT - org.eclipse.jdt.internal.ui.filters.CustomFiltersDialog.createCheckBoxList creates a Text with style SWT.VERTICAL (perhaps V_SCROLL was meant?)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/AbstractInformationControl.java
tree.setSelection(new TreeItem[] { fLastItem });
							}								
						} else if (e.y > tree.getBounds().height - tree.getItemHeight() / 4) {
							
							Point p= tree.toDisplay(e.x, e.y);
							Item item= fTreeViewer.scrollDown(p.x, p.y);
							if (item instanceof TreeItem) {
								fLastItem= (TreeItem)item;
								tree.setSelection(new TreeItem[] { fLastItem });
							}								
						}
					}
				}
			}
		});
		tree.addMouseListener(new MouseAdapter() {
			public void mouseUp(MouseEvent e) {
				if (tree.getSelectionCount() < 1)
					return;
				
				if (e.button != 1)
					return;
				if (tree.equals(e.getSource())) {
					Object o= tree.getItem(new Point(e.x, e.y));
					TreeItem selection= tree.getSelection()[0];
					if (selection.equals(o))
						gotoSelectedElement();
				}
			}
		});