get NPE on restart when timer attempts to schedule jobs

 GlobalJobHandle jobHandle = (GlobalJobHandle) this.schedulerService.scheduleJob(job, ctx, trigger); jobHandles.add(jobHandle);

 for (GlobalJobHandle handle : jobHandles) {
                    long timerId = handle.getTimerId();
                    if (timerId == processCtx.getTimer().getId()) {
                        // this timer job is already registered
                        return handle;
                    }
                }