限制子任务不能是任务本身，防止递归调用和死循环

xxl-job-admin/src/main/java/com/xxl/job/admin/core/complete/XxlJobCompleter.java

@@ -55,6 +55,10 @@ public class XxlJobCompleter {
                 String[] childJobIds = xxlJobInfo.getChildJobId().split(",");
                 for (int i = 0; i < childJobIds.length; i++) {
                     int childJobId = (childJobIds[i]!=null && childJobIds[i].trim().length()>0 && isNumeric(childJobIds[i]))?Integer.valueOf(childJobIds[i]):-1;
+                    if (childJobId == xxlJobLog.getJobId()) {
+                        logger.info("jobid {} is self, ignore it.", childJobId);
+                        continue;
+                    }
                     if (childJobId > 0) {
 
                         JobTriggerPoolHelper.trigger(childJobId, TriggerTypeEnum.PARENT, -1, null, null, null);

xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/XxlJobServiceImpl.java

@@ -222,7 +222,11 @@ public class XxlJobServiceImpl implements XxlJobService {
 			String[] childJobIds = jobInfo.getChildJobId().split(",");
 			for (String childJobIdItem: childJobIds) {
 				if (childJobIdItem!=null && childJobIdItem.trim().length()>0 && isNumeric(childJobIdItem)) {
-					XxlJobInfo childJobInfo = xxlJobInfoDao.loadById(Integer.parseInt(childJobIdItem));
+					int childJobId = Integer.parseInt(childJobIdItem);
+					XxlJobInfo childJobInfo = xxlJobInfoDao.loadById(childJobId);
+					if (childJobId == jobInfo.getId()) {
+						return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_childJobId")+"("+childJobId+")"+I18nUtil.getString("system_unvalid")) );
+					}
 					if (childJobInfo==null) {
 						return new ReturnT<String>(ReturnT.FAIL_CODE,
 								MessageFormat.format((I18nUtil.getString("jobinfo_field_childJobId")+"({0})"+I18nUtil.getString("system_not_found")), childJobIdItem));