CubeOpenFileRequest request = new CubeOpenFileRequest();
        request.setPubNum("CN202097706U");
        request.setPubDate("20120104");
        request.setFileCategory(PatentFileCategory.PDF);
        request.setPatentCategory(PatentCategory.APP);
        CubePatentFileResponse response = CLIENT.execute(request);
                            
                        

                            
        byte[] contentInBytes = cubePatentFileResponse.getFileByte();
        File file = new File("/Users/file-test/test.pdf");
        if (!file.exists()) {
            file.createNewFile();
        }
        FileOutputStream fileOutputStream = new FileOutputStream(file);
        fileOutputStream.write(contentInBytes);
        fileOutputStream.flush();
        fileOutputStream.close();
                            
                        

                            
{
	"errorCode":"500",
	"fileByte":"AAAAAAAAAAAAAA==",
	"msg":"pubDate cannot be null or empty!",
	"success":false
}