Github user BryanCutler commented on the issue:
https://github.com/apache/spark/pull/19098
@srowen , the assertion is from the Spark `ColumnarBatch`
[here](https://github.com/apache/spark/blob/master/sql/core/src/main/java/org/apache/spark/sql/execution/vectorized/ColumnarBatch.java#L491).
```java
public ColumnarBatch.Row getRow(int rowId) {
assert(rowId >= 0);
assert(rowId < numRows);
row.rowId = rowId;
return row;
}
```
I'm also not quite sure why this wasn't working, I checked and `-ea` is an
added argument in the pom. Still, I wonder if we should change the asserts in
this class to something better. Maybe these are used instead of exceptions for
performance?
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