分片上传提示返回结果无效

使用java api进行分片上传
OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
InitiateMultipartUploadRequest request = new InitiateMultipartUploadRequest(bucketName, key);
InitiateMultipartUploadResult result = ossClient.initiateMultipartUpload(request);
运行到initiateMultipartUpload就报错：
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread "main" com.aliyun.oss.OSSException: 返回结果无效，无法解析。

[ResponseError]:

at com.aliyun.oss.common.utils.ExceptionFactory.createOSSException(ExceptionFactory.java:109)
at com.aliyun.oss.common.utils.ExceptionFactory.createInvalidResponseException(ExceptionFactory.java:91)
at com.aliyun.oss.common.utils.ExceptionFactory.createInvalidResponseException(ExceptionFactory.java:81)
at com.aliyun.oss.internal.OSSOperation.doOperation(OSSOperation.java:154)
at com.aliyun.oss.internal.OSSOperation.doOperation(OSSOperation.java:113)
at com.aliyun.oss.internal.OSSMultipartOperation.initiateMultipartUpload(OSSMultipartOperation.java:243)
at com.aliyun.oss.OSSClient.initiateMultipartUpload(OSSClient.java:794)
at com.oppo.oss.OSSTest.main(OSSTest.java:49)