在ScalarDB中复制时PutIfNotExists未抛出错误

import com.scalar.db.api.DistributedStorage;
import com.scalar.db.api.Put;
import com.scalar.db.api.PutIfNotExists;
import com.scalar.db.api.Result;
import com.scalar.db.exception.transaction.TransactionException;
import com.scalar.db.io.Key;
import com.scalar.db.io.Value;

DistributedStorage storage = // 初始化和配置分布式存储

Key key = Key.newBuilder()
    .addStringValue("key", "example_key")
    .build();

Value value = Value.newBuilder()
    .addStringValue("value", "example_value")
    .build();

PutIfNotExists putIfNotExists = PutIfNotExists.newBuilder(key, value).build();

try {
    Result result = storage.execute(putIfNotExists);
    // 处理结果
} catch (TransactionException e) {
    // 处理异常
}