[Java] Exception when trying to load next batch while reading a parquet file

### Describe the bug, including details regarding any error messages, version, and platform.

Getting this exception when trying to load next batch while reading a parquet file.
The parsing works if the batch size is big enough to process all the parquet contents in one shot. But if I try to give a smaller batch size , the code breaks giving the below exception

java.lang.IllegalArgumentException: should have as many children as in the schema: found 0 expected 8
at org.apache.arrow.util.Preconditions.checkArgument(Preconditions.java:282)
at org.apache.arrow.vector.VectorLoader.loadBuffers(VectorLoader.java:127)
at org.apache.arrow.vector.VectorLoader.load(VectorLoader.java:84)
at org.apache.arrow.c.Data.importIntoVectorSchemaRoot(Data.java:334)
at org.apache.arrow.dataset.jni.NativeScanner$NativeReader.loadNextBatch(NativeScanner.java:151)

### Component(s)

Java

Start by reproducing the failure when loading a parquet file in batches smaller than the full contents. Read NativeScanner.java at loadNextBatch, then trace the calls through Data.importIntoVectorSchemaRoot and VectorLoader.loadBuffers. Done means subsequent batches load without the schema-child-count exception, but the issue provides no test or reproduction file.

Written by the indexing model from the issue text.