[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5854) ArrayIndexOutOfBounds on fetching onetoone associations using projections
ArrayIndexOutOfBounds on fetching onetoone associations using projections
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Key: HHH-5854
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5854
Project: Hibernate Core
Issue Type: Bug
Components: query-criteria
Affects Versions: 3.6.0
Environment: Hibernate version 3.6.0
Reporter: Krishna Sundaresan
Attachments: testCase.zip
The loading of OneToOne associations using projections results in an ArrayIndexOutOfBounds
exception when the results are loaded by the CriteriaLoader.
The stacktrace is:
{code}
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at
org.hibernate.loader.criteria.CriteriaLoader.getResultColumnOrRow(CriteriaLoader.java:148)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:639)
at org.hibernate.loader.Loader.doQuery(Loader.java:829)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
at org.hibernate.loader.Loader.doList(Loader.java:2533)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
at org.hibernate.loader.Loader.list(Loader.java:2271)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
at testbed.app.HibernateApp.main(HibernateApp.java:24)
Java Result: 1
{code}
The problem seems to be with the way the association aliases and types are used in
getResultRow. When the types are fetched, all the types that are mentioned in the
projection clause are provided whereas when the aliases to be used are fetched
SimpleProjection's getColumnCount method seems to be ignoring columns that do not span
resulting in a mis-match of array indices.
{code:title=From CriteriaLoader.getResultRow(...)}
if ( translator.hasProjection() ) {
Type[] types = translator.getProjectedTypes();
result = new Object[types.length];
String[] columnAliases = translator.getProjectedColumnAliases();
...
{code}
The attached file has a test-case that will demonstrate the problem. Tested that on
Hibernate 3.6.0 and derby. I was able to observe this in a case where the association is
mapped by a shared primary key but I guess that same should be observable even without a
shared primary key.
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