Bug 42068 Pref Pages button order
The button order of: New.../Add... Edit... Remove Should be the same on the following preference pages: Classpath Variables Debug/Detail Formatter Editor/Templates Installed JREs Organize Imports Task Tags @@@ There should be no extra space on: Classpath Variables Task Tags @@@@ The "Up" and "Down" Buttons on Organize Imports should be placed after "New...", "Edit...", and "Remove" for consistency. There should be an extra space between "Remove" and "Enable All" on Debug/Step Filtering for consistency. There should be an extra space between "Remove" and "Search" on Installed JREs for consistency.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
fTable.setSorter(fViewerSorter);
			}
			
			fTableControl.setEnabled(isEnabled());
			if (fSelectionWhenEnabled != null) {
				postSetSelection(fSelectionWhenEnabled);
			}
		}
		return fTableControl;
	}
	/**
	 * Returns the internally used table viewer.
	 */ 		
	public TableViewer getTableViewer() {
		return fTable;
	}
	
	/* 
	 * Subclasses may override to specify a different style.
	 */
	protected int getListStyle(){
		int style=  SWT.BORDER | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL ;
		if (fTableColumns != null) {
			style |= SWT.FULL_SELECTION;
		}
		return style;		
	}
	
	protected TableViewer createTableViewer(Composite parent) {
		Table table= new Table(parent, getListStyle());