rdblue commented on a change in pull request #2001:
URL: https://github.com/apache/iceberg/pull/2001#discussion_r551623386
##########
File path: parquet/src/main/java/org/apache/iceberg/parquet/ParquetWriter.java
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@@ -170,6 +181,9 @@ private void flushRowGroup(boolean finished) {
}
private void startRowGroup() {
+ if (this.closed) {
+ throw new IllegalStateException("writer is closed");
Review comment:
Error messages should begin with a capital letter.
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