NPE when update using CASE statement on Derby
---------------------------------------------
Key: OPENJPA-1413
URL: https://issues.apache.org/jira/browse/OPENJPA-1413
Project: OpenJPA
Issue Type: Bug
Components: jdbc
Reporter: Fay Wang
Assignee: Fay Wang
Fix For: 2.0.0
Derby Error:
<openjpa-2.0.0-SNAPSHOT-r422266:883808 nonfatal user error>
org.apache.openjpa.persistence.ArgumentException: null
<openjpa-2.0.0-SNAPSHOT-r422266:883808 nonfatal user error>
org.apache.openjpa.persistence.ArgumentException: null
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:822)
at org.apache.openjpa.kernel.QueryImpl.updateAll(QueryImpl.java:893)
at org.apache.openjpa.kernel.QueryImpl.updateAll(QueryImpl.java:889)
at
org.apache.openjpa.kernel.DelegatingQuery.updateAll(DelegatingQuery.java:565)
at
org.apache.openjpa.persistence.QueryImpl.executeUpdate(QueryImpl.java:341)
at apitests.Client.queryAPITest22(Client.java:133)
at apitests.Client.main(Client.java:77)
Caused by: java.lang.NullPointerException
at
org.apache.openjpa.jdbc.kernel.exps.CompareEqualExpression.appendTo(CompareEqualExpression.java:109)
at
org.apache.openjpa.jdbc.kernel.exps.WhenCondition.appendTo(WhenCondition.java:70)
at
org.apache.openjpa.jdbc.kernel.exps.GeneralCaseExpression.appendTo(GeneralCaseExpression.java:114)
at
org.apache.openjpa.jdbc.sql.DBDictionary.appendUpdates(DBDictionary.java:2149)
at
org.apache.openjpa.jdbc.sql.DBDictionary.toBulkOperation(DBDictionary.java:2017)
at
org.apache.openjpa.jdbc.sql.DBDictionary.toUpdate(DBDictionary.java:1950)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreQuery.executeBulkOperation(JDBCStoreQuery.java:511)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreQuery.executeUpdate(JDBCStoreQuery.java:451)
at
org.apache.openjpa.kernel.ExpressionStoreQuery$DataStoreExecutor.executeUpdate(ExpressionStoreQuery.java:761)
at org.apache.openjpa.kernel.QueryImpl.update(QueryImpl.java:1049)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:817)
... 6 more
The following fails agsint Derby:
Query q = em.createQuery(
"update Department d set d.name= " +
" CASE WHEN d.id = 1 THEN 'SoilEngineering'" +
" WHEN d.id = 2 THEN 'Mettalurgy'" +
" ELSE 'Aero'" +
" END");
result_size = q.executeUpdate(); // <--- Error here
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