3.0版本solidity转java不支持结构体

在2.9.0版本，不管是java-sdk，console控制台以及java-sdk-demo都是可以将合约中的结构体转为java对象。升级到3.0后，再转换的过程中会出现集合索引越界的异常Index: 0, Size: 0。断点定位到出现问题的代码在如图位置

下面是我合约的部分代码
import "./Utils.sol";

contract InnerProductVerifier {
using Utils for uint256;
using Utils for Utils.G1Point;

struct InnerProductStatement {
Utils.G1Point[] hs; // "overridden" parameters.
Utils.G1Point u;
Utils.G1Point P;
}

struct InnerProductProof {
Utils.G1Point[] ls;
Utils.G1Point[] rs;
uint256 a;
uint256 b;
}

function verifyInnerProduct(Utils.G1Point[] memory hs, Utils.G1Point memory u, Utils.G1Point memory P, InnerProductProof memory proof, uint256 salt) public view returns (bool) {
InnerProductStatement memory statement;
statement.hs = hs;
statement.u = u;
statement.P = P;

return verify(statement, proof, salt);
}
｝

pragma solidity ^0.5.0;
pragma experimental ABIEncoderV2;

library Utils {
struct G1Point {
bytes32 x;
bytes32 y;
}
}

Start by reproducing the Solidity-to-Java conversion with the InnerProductStatement and InnerProductProof structs from the issue under version 3.0, then compare the same contract’s behavior in 2.9.0. Inspect the Java SDK, console, and java-sdk-demo conversion paths around the reported collection index failure. Done means nested structs and arrays convert to Java objects without the Index: 0, Size: 0 exception.

Written by the indexing model from the issue text.