Thrift在AsyncIface中生成原始类型

Question

使用Thrift 0.9.1和maven-thrift-plugin 0.1.11，对于我service Voigy中的每个方法（例如CandidateAnswer getAnswers(1:Query query) throws (1:VoigyException e)），我看到类似

的内容

public void getAnswers(Query query, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;

在Voigy.AsyncIface而不是我期望的AsyncMethodCallback<CandidateAnswer>。这是预期的结果，Thrift或maven-thrift-plugin中的已知错误，还是我的设置问题？

Voigy.thrift：

namespace java com.voigy.api

struct Query {
  1: required i32 scriptNodeId
  2: required string text
}

struct Parameter {
  1: required i32 paramTypeId
  2: required i32 startIndex
  3: required i32 endIndex
  4: required string normalizedText
}

struct CandidateAnswer {
  1: required i32 classifierId
  2: required list<Parameter> parameters
}

exception VoigyException {
  1: required string message
  2: required i32 errorCode
}

service Voigy {
  CandidateAnswer getAnswers(1:Query query) throws (1:VoigyException e)

  void startLearning(1:i32 scriptNodeId, 2:bool force) throws (1:VoigyException e)

  void startLearningParameters(1:bool force) throws (1:VoigyException e)

  void startLearningAll(1:bool force) throws (1:VoigyException e)
}

我不知道如何查看maven-thrift-plugin使用的确切命令行，但是看一下代码，这应该是C:\thrift\thrift -r --gen java -out target/generated-sources/thrift **/*.thrift（这会重现相同的结果）。