import java.io.*;import org.lmdbjava.*;import org.testng.Assert;import org.testng.annotations.Test;public class FooTest {    @Test    public void testFoo() throws Exception {        // Create new empty directory        File dir = File.createTempFile("foo.", null);        Assert.assertTrue(dir.delete());        Assert.assertTrue(dir.mkdirs());        dir.deleteOnExit();        // Create new environment        Env.Builder<byte[]> builder = Env.create(ByteArrayProxy.PROXY_BA);        Env<byte[]> env = builder.open(dir);        // Open database        Dbi<byte[]> db = env.openDbi("foo", DbiFlags.MDB_CREATE);        // Open transaction        Txn<byte[]> tx = env.txnWrite();        // Put key/value pair        db.put(tx, new byte[] { 1 }, new byte[] { 2 });        // Iterate range backwards - we should encounter the key/value pair we just put        try (CursorIterator<byte[]> i = db.iterate(tx, KeyRange.greaterThanBackward(new byte[] { 3 }))) {            Assert.assertTrue(i.hasNext());      // TEST FAILS HERE            CursorIterator.KeyVal<byte[]> kv = i.next();            Assert.assertEquals(kv.key(), new byte[] { 1 });            Assert.assertEquals(kv.val(), new byte[] { 2 });            Assert.assertFalse(i.hasNext());        }        // Commit transaction        tx.commit();        // Close environment        env.close();    }}