[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-5817) Passing char[] or byte[] to equal function of CriteriaBuilder throws java.lang.ClassCastException (Vyacheslav Dimitrov)

[Gail Badner (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gail Badner updated HHH-5817:
-----------------------------

    Summary: Passing char[] or byte[] to equal function of CriteriaBuilder throws java.lang.ClassCastException (Vyacheslav Dimitrov)  (was: Passing char[] or byte[] to equal function of CriteriaBuilder throws java.lang.ClassCastException.)

> Passing char[] or byte[] to equal function of CriteriaBuilder throws java.lang.ClassCastException (Vyacheslav Dimitrov)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-5817
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5817
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: entity-manager
>    Affects Versions: 3.6.0
>         Environment: Hibernate 3.6.0-Finale, derby db, mysql db, hsqldb
>            Reporter: Vyacheslav Dimitrov
>            Assignee: Gail Badner
>            Priority: Minor
>             Fix For: 3.6.1, 4.0.0.Alpha1
>
>         Attachments: hibernate_3_6_0.patch
>
>
> We have byte[] field in one of our entity and we want to make query like this.
> {code}
> byte[] var = ...;
> Predicate p = builder.equal(root.get("ourByteField"), var);
> criteria.where(p);
> {code}
> But this code throws exception:
>      [java] Exception in thread "main" java.lang.ClassCastException: [B cannot be cast to [Ljava.lang.Object;
>      [java]     at org.hibernate.ejb.AbstractQueryImpl.registerParameterBinding(AbstractQueryImpl.java:349)
>      [java]     at org.hibernate.ejb.QueryImpl.setParameter(QueryImpl.java:364)
>      [java]     at org.hibernate.ejb.criteria.CriteriaQueryCompiler$1$1.bind(CriteriaQueryCompiler.java:194)
>      [java]     at org.hibernate.ejb.criteria.CriteriaQueryCompiler.compile(CriteriaQueryCompiler.java:247)
>      [java]     at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:441)
>      [java]     at ru.petrsu.nest.oqlite.test.TestParser.main(TestParser.java:92)
>      [java] Java Result: 1
> because class AbstractQueryImpl has code:
> {code}
> ...
> else if ( value.getClass().isArray() ) {
>      final Object[] array = (Object[]) value;
> ...
> {code}
> We offer to change this "if" like this
> {code}
> ...
> else if ( value.getClass().isArray() && value.getClass().equals(Object[].class)) {
>      final Object[] array = (Object[]) value;
> ...
> {code}
> Due to this new condition we get what we want and our criteria works fine. (At least ClassCastExceptio isn't occured).
> Patch is attached (Also I can do pull request, if needed).

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