private void appendSteps(@Nullable final StepSequence sequence) {
if (sequence != null) {
final List<ModuleWizardStep> commonSteps = sequence.getCommonSteps();
for (ModuleWizardStep step : commonSteps) {
addStep(step);
}
for (String type : sequence.getTypes()) {
appendSteps(sequence.getSpecificSteps(type));
}
}
}
