[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2833) NullPointerException in insert-select query

NullPointerException in insert-select query ------------------------------------------- Key: HHH-2833 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2833 Project: Hibernate3 Issue Type: Bug Components: query-hql Affects Versions: 3.2.3 Reporter: John Mazzitelli I'm getting the following NPE when I convert a valid SELECT query into an INSERT SELECT query. Here's the stack: ================================================== Caused by: java.lang.NullPointerException at org.hibernate.hql.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:310) at org.hibernate.hql.antlr.HqlSqlBaseWalker.joinElement(HqlSqlBaseWalker.java:3275) at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3067) at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2945) at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:688) at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:544) at org.hibernate.hql.antlr.HqlSqlBaseWalker.insertStatement(HqlSqlBaseWalker.java:482) at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:253) at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:228) at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:160) at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:111) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:77) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:56) at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:72) at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133) at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112) at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1623) at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:92) at org.jboss.ejb3.entity.TransactionScopedEntityManager.createQuery(TransactionScopedEntityManager.java:127) at org.jboss.on.domain.util.PersistenceUtility.createInsertSelectQuery(PersistenceUtility.java:225) at org.jboss.on.server.measurement.MeasurementBaselineManagerBean.calculateAutoBaselines(MeasurementBaselineManagerBean.java:80) ... 60 more ================================================== I first start out with this valid SELECT query (I can run this in the Hibernate Tools in Eclipse - it works and returns valid data as expected): ---------- SELECT min(d.min) AS baselineMin, max(d.max) AS baselineMax, avg(d.value) AS baselineMean, CURRENT_TIMESTAMP AS computeTime, d.id.scheduleId AS scheduleId FROM MeasurementDataNumeric1H d JOIN d.schedule s LEFT JOIN s.baseline b WHERE b.id IS NULL AND d.id.timestamp BETWEEN :startTime AND :endTime GROUP BY d.id.scheduleId HAVING d.id.scheduleId IN ( SELECT d1.id.scheduleId FROM MeasurementDataNumeric1H d1 WHERE d1.id.timestamp <= :startTime ) ---------- Here is what the Hibernate Tools Dynamic SQL Preview view shows me is the actual, generated SQL: ---------- select min(measuremen0_.minvalue) as col_0_0_, max(measuremen0_.maxvalue) as col_1_0_, avg(measuremen0_.value) as col_2_0_, CURRENT_TIMESTAMP as col_3_0_, measuremen0_.SCHEDULE_ID as col_4_0_ from public.ON_MEASUREMENT_DATA_NUM_1H measuremen0_ inner join public.ON_MEASUREMENT_SCHEDULE measuremen1_ on measuremen0_.SCHEDULE_ID=measuremen1_.id left outer join public.ON_MEASUREMENT_BASELINE measuremen2_ on measuremen1_.id=measuremen2_.SCHEDULE_ID where ( measuremen2_.id is null ) and ( measuremen0_.TIME_STAMP between ? and ? ) group by measuremen0_.SCHEDULE_ID having measuremen0_.SCHEDULE_ID in ( select measuremen3_.SCHEDULE_ID from public.ON_MEASUREMENT_DATA_NUM_1H measuremen3_ where measuremen3_.TIME_STAMP<=? ) ---------- Now that I can see this works, I simply add this line to the beginning of that SELECT query: ---------- INSERT INTO MeasurementBaseline (baselineMin,baselineMax,baselineMean,computeTime,scheduleId) ---------- Here is what the Hibernate Tools Dynamic SQL Preview view shows me is the actual, generated SQL: ---------- insert into public.ON_MEASUREMENT_BASELINE ( id, BL_MIN, BL_MAX, BL_MEAN, BL_COMPUTE_TIME, SCHEDULE_ID ) select nextval ('public.ON_MEASUREMENT_BASELINE_ID_SEQ'), min(measuremen0_.minvalue) as col_0_0_, max(measuremen0_.maxvalue) as col_1_0_, avg(measuremen0_.value) as col_2_0_, CURRENT_TIMESTAMP as col_3_0_, measuremen0_.SCHEDULE_ID as col_4_0_ from public.ON_MEASUREMENT_DATA_NUM_1H measuremen0_ inner join public.ON_MEASUREMENT_SCHEDULE measuremen1_ on measuremen0_.SCHEDULE_ID=measuremen1_.id left outer join public.ON_MEASUREMENT_BASELINE measuremen2_ on measuremen1_.id=measuremen2_.SCHEDULE_ID where ( measuremen2_.id is null ) and ( measuremen0_.TIME_STAMP between ? and ? ) group by measuremen0_.SCHEDULE_ID having measuremen0_.SCHEDULE_ID in ( select measuremen3_.SCHEDULE_ID from public.ON_MEASUREMENT_DATA_NUM_1H measuremen3_ where measuremen3_.TIME_STAMP<=? ) ---------- If I were to pass in the HQL (the INSERT INTO...SELECT) via: entityManager.createQuery("INSERT INTO...SELECT...and the rest...") I get the NPE.