@Nullable
                                                 @Override
                                                 public String getErrorText(String inputString) {
                                                   try {
                                                     Long.parseLong(inputString);
                                                     return null;
                                                   }
                                                   catch (NumberFormatException e) {
                                                     return JavaDebuggerBundle
                                                       .message("add.instance.filter.dialog.error.numeric.value.expected");
                                                   }
                                                 }
@Nullable
                                                 @Override
                                                 public String getErrorText(String inputString)