EDIT

import java.util.List;

import org.eclipse.ui.PlatformUI;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.ui.dialog.ReportTextDialog;

                     final StringBuilder reportText = new StringBuilder();

                     if(result!=null){

                         List<byte[]> reports = result.getErrors();

                         reportText.append("Errors:\\r");

                         for (byte[] bs : reports) {

                             reportText.append(new String(bs));

                         }

                         List<byte[]> warnings = result.getWarnings();

                         reportText.append("Warnings:\\r");

                         for (byte[] bs : warnings) {

                             reportText.append(new String(bs));

                         }

                         List<Exception> exceptions = result.getExceptions();

                         reportText.append("Exceptions:\\r");

                         for (Exception ex : exceptions) {

                             reportText.append(ex.getStackTrace());

                         }

                     }

                     final Display display = Display.getDefault();

                     display.asyncExec(new Runnable() {

                         @Override

                         public void run() {

                             // display reports with possibility to save

                             ReportTextDialog dialog = new ReportTextDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());

                             dialog.setTitle(configurator.getClass().getSimpleName()+" Report");

                             dialog.setReportText(reportText.toString());

                             dialog.open();

                             CdmStore.getContextManager().notifyContextRefresh();

                         }

                     });