[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6215) final fields can't be set if they're public
final fields can't be set if they're public
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Key: HHH-6215
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6215
Project: Hibernate Core
Issue Type: Bug
Components: core
Affects Versions: 3.6.4
Environment: Hibernate 3.6.4
Reporter: Bogdan Butnaru
As far as I can tell, Hibernate 3.6.4 can set a {{final}} field, _except_ if both the
field and the class it belongs to are declared {{public}}. In other words,
{noformat}
public class Test{
@Column(name = "field")
private final String field = null;
}
{noformat}
will work, as will making the class non-{{public}} and the field {{public}}, but
{noformat}
public class Test{
@Column(name = "field")
public final String field = null;
}
{noformat}
will not. The latter causes an {{org.hibernate.PropertyAccessException}} to be thrown when
a {{Test}} object is initialized from the database (caused by a
{{java.lang.IllegalAccessException}}).
(The message I get is _"could not set a field value by reflection setter of
one.of.my.Classes.field at
org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:151)"_)
I looked a bit around the sources for 3.6.4 (which I downloaded earlier today) and did a
little debugging, and as far as I can tell the problem is in
{{DirectPropertyAccessor.getField(Class, String)}}; Specifically, line 176 reads
{noformat}
if ( !ReflectHelper.isPublic(clazz, field) ) field.setAccessible(true);
{noformat}
that is, {{setAccessible}} is not called for {{public}} fields even if they are {{final}}.
I don't know the code enough to be sure, but I believe the test should check for
{{final}} too.
There is an identical line in the next method (same name but with two {{Class}} arguments,
line 191); I suspect that causes the same problem, but I didn't hit that code in my
case (AFAIK because I don't have inherited fields).
I'm sorry for not uploading a test case, I don't quite get how to check this, but
I hope I pointed close enough to the problem.
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