构建CreateCollectionReq出现indexParams$value=null导致空指针异常

[yeyinglang]

现象

java版本：jdk11
milvus-sdk-java版本： 2.6.0

报错堆栈的代码触发点

复现代码

     ConnectConfig config = ConnectConfig.builder()
                .connectTimeoutMs(1000).uri("http://localhost:19530").build();
        MilvusClientV2 milvusClientV2 = new MilvusClientV2(config);
        String collectionName = "test_java_collection";

        FieldSchema primaryKey = FieldSchema.builder().name("id")
                .autoID(true)
                .dataType(DataType.Int64)
                .isPrimaryKey(true)
                .build();

        FieldSchema textField = FieldSchema.builder().name("text")
                .dataType(DataType.VarChar)
                .maxLength(512)
                .build();

        FieldSchema vectorField = FieldSchema.builder().name("vector")
                .dataType(DataType.FloatVector)
                .dimension(128)
                .build();

        IndexParam indexParam = IndexParam.builder()
                .indexName("vector_idx")
                .indexType(IndexType.AUTOINDEX)
                .metricType(MetricType.L2)
                .fieldName("vector").build();

        CollectionSchema collectionSchema = CollectionSchema.builder().fieldSchemaList(Arrays.asList(primaryKey,textField,vectorField)).build();
        CreateCollectionReq createCollectionReq = CreateCollectionReq.builder()
                .collectionName(collectionName)
                .collectionSchema(collectionSchema)
                .indexParam(indexParam)
                .build();

        milvusClientV2.createCollection(createCollectionReq);

[yhmo]

public B indexParam(IndexParam indexParam) 这个方法确实写的有问题。稍后我会fix
你可以先这样设置：

List<IndexParam> indexes = new ArrayList<>();
Map<String,Object> extraParams = new HashMap<>();
extraParams.put("nlist",128);
indexes.add(IndexParam.builder()
        .fieldName(VECTOR_FIELD)
        .indexName(INDEX_NAME)
        .indexType(INDEX_TYPE)
        .metricType(IndexParam.MetricType.COSINE)
        .extraParams(extraParams)
        .build());

CreateCollectionReq requestCreate = CreateCollectionReq.builder()
        .collectionName(COLLECTION_NAME)
        .collectionSchema(collectionSchema)
        .indexParams(indexes)
        .consistencyLevel(ConsistencyLevel.BOUNDED)
        .build();

[yeyinglang]

大佬，帮忙看下fix的PR哈；

[yhmo]

我的pr已经带上这个fix了，暂时不用你出手哈
#1465