[Java] splitAndTransfer on empty ListVector should not throw IOB

[FiV0]

The following throws with java.lang.IndexOutOfBoundsException: index: 0, length: 4 (expected: range(0, 0))

package org.apache.arrow.vector;

import org.apache.arrow.memory.RootAllocator;
import org.apache.arrow.vector.complex.ListVector;
import org.apache.arrow.vector.util.TransferPair;
import org.junit.jupiter.api.Test;

import static org.junit.Assert.assertEquals;


public class ListVectorIOBTest {

    @Test
    void shouldNotThrow()  {
        RootAllocator allocator = new RootAllocator();
        ListVector listVector = ListVector.empty("foo", allocator);

        TransferPair transferPair = listVector.getTransferPair(allocator);
        transferPair.splitAndTransfer(0,0);
        assertEquals(null, transferPair.getTo());

    }

}

Tested against the 14.0.2 tag.

I think the test condition here

arrow/java/memory/memory-core/src/main/java/org/apache/arrow/memory/ArrowBuf.java

Line 316 in e7ab540

if (index < 0 || index > capacity() - fieldLength) {

is not correct for index = 0 and capacity = 0.

Component(s)

Java

[jarohen]

@FiV0 this might be a dupe of #30866?

[FiV0]

@jarohen yes true.