browsePackage = new Button(classGroup, SWT.PUSH);
browsePackage.setText(ClickPlugin.getString("action.browse"));
browsePackage.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent evt){
IRunnableContext context= new BusyIndicatorRunnableContext();
int style = PackageSelectionDialog.F_REMOVE_DUPLICATES |
PackageSelectionDialog.F_SHOW_PARENTS |
PackageSelectionDialog.F_HIDE_DEFAULT_PACKAGE;
JavaSearchScope scope = new JavaSearchScope();