CXF不支持泛型类作为返回值？

我用如下类作为返回值：

public class WebServiceResponse<T> {

	private boolean success;
	private String error;
	private T response;
	
	public boolean isSuccess() {
		return success;
	}
	public void setSuccess(boolean success) {
		this.success = success;
	}
	public String getError() {
		return error;
	}
	public void setError(String error) {
		this.error = error;
	}
	public T getResponse() {
		return response;
	}
	public void setResponse(T response) {
		this.response = response;
	}
}

接口：

@WebService
public interface CustQueryServiceI {

		public WebServiceResponse<String[]> queryCustPayHistory(PayInfo payInfo);
}

如果直接把<T>部分去掉，改成String[]也没有问题，是否CXF不支持这种类型作为返回值？
PS:CXF 2.1 + SPRING 2.5