Alexander Kolbasov created HIVE-17737:
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Summary: ObjectStore.getNotificationEventsCount may cause NPE
Key: HIVE-17737
URL: https://issues.apache.org/jira/browse/HIVE-17737
Project: Hive
Issue Type: Bug
Components: Hive
Affects Versions: 2.3.0, 3.0.0
Reporter: Alexander Kolbasov
In ObjectStore.getNotificationEventsCount():
{code}
public NotificationEventsCountResponse
getNotificationEventsCount(NotificationEventsCountRequest rqst) {
Long result = 0L;
try {
openTransaction();
long fromEventId = rqst.getFromEventId();
String inputDbName = rqst.getDbName();
String queryStr = "select count(eventId) from " +
MNotificationLog.class.getName()
+ " where eventId > fromEventId && dbName == inputDbName";
query = pm.newQuery(queryStr);
query.declareParameters("java.lang.Long fromEventId, java.lang.String
inputDbName");
result = (Long) query.execute(fromEventId, inputDbName); // <- Here
commited = commitTransaction();
return new NotificationEventsCountResponse(result.longValue());
}
}
{code}
It is possible that query.execute will return null in which case
rsult.longValue() may throw NPE.
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