Java 将新作业流添加到数据库

我正在尝试向TWSz广告中添加新的jobstream，但出现错误： AWSJCS011E发生内部错误。错误如下：“java.lang.NullPointerException”

我的代码如下所示：

JobStream jobStream = new JobStream();

            jobStream.setName("DM#JAVA#COND");
            jobStream.setDescription("Auto Test");
            jobStream.setGroup(false);
            jobStream.setOwnerName("USER");
            jobStream.setPriority(1);

            DateTimeFormatter formatter = DateTimeFormat.forPattern("dd-MM-yyyy");
            DateTime dateTime = DateTime.parse("17-04-2018",formatter);

            jobStream.setValidFrom(dateTime.toDate());


            Job job001 = new Job();
            job001.setName("1");
            job001.setPriority(1);


             ZOSJobDefinition job001ZOSDef = new ZOSJobDefinition();

             job001ZOSDef.setFlowTargetKey(new FlowTargetKey("BEGN"));
             job001ZOSDef.setTaskType(TaskTypes.ZOS_GENERAL_TASK);
             job001ZOSDef.setJclName("START");
             job001ZOSDef.setAutoSubmit(true);
             job001ZOSDef.setAutoRelease(true);
             job001ZOSDef.setNormalElapsedTime(1000L);
             job001ZOSDef.setHighestOkReturnCode(0);


             job001.setJobDefinition(job001ZOSDef);

             jobStream.getJobs().add(job001);
             model.addTWSObject(jobStream, null);

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代码看起来与手册中的代码类似。

问题是当我用9.3替换9.2时，TWS SDK开始工作