parquet-column/src/main/java/org/apache/parquet/io/ValidatingRecordConsumer.java
public void startGroup() {
    previousField.push(-1);
    types.push(types.peek().asGroupType().getType(fields.peek()));
    delegate.startGroup();
  }
public void startGroup() {
    previousField.push(-1);
    types.push(types.peek().asGroupType().getType(fields.peek()));
    delegate.startGroup();
  }
{@inheritDoc}