Datasource resource injection in JBoss 6 using CDI

[mikaelbeermann]

Hi,

I'm building a CDI based project with JBoss 6, but I can't get the injection of datasources to work. If I do a manual JNDI-lookup the datasource is found whitout any problem. Using the @Resouce annotation, the datasource remains null, but there is no exceptions visible in the log file (excapt for a NullPointerException when trying to use the datasource).

This works:

Context context = new InitialContext();

defaultDS = (DataSource) context.lookup("java:MySqlDS");

but this doesn't work:

@Resource(mappedName="java:MySqlDS")

DataSource defaultDS;

and this doesn't work either:

@Resource(name="java:MySqlDS")

DataSource defaultDS;

First I thought it was som kind of naming error, but since no exception shows up, I think it looks more like the @Resource annotation doesn't work at all.

Are there any  known conflict with the Resource injectionns in JBoss 6? Does anyout have a clue of what can be wrong?

/Mikael

[nickarls]

Can you inject the java:/DefaultDS?

[mikaelbeermann]

No, I have exectly the same problem with DefaultDS

[nickarls]

Sounds strange, isn't there supposed to be an exception if injection is attempted and results in null (can't remember)?

Are you picking up the correct @Resource annotation?

Can you inject and other known resource (e.g. JavaMail)?

Can you see @Inject BeanManager bm?

Are you aquiring the class from the server and not doing new() or some other no-no?

[jaikiran]

Also what kind of a class is that, into which you are trying to inject this resource?

[mikaelbeermann]

His becomes even stranger! I checked if I could Inject a javamail session, and that wasn't any problem. But after doing that the datasource injection worked as well. I then removed the JavaMail injection. And now it data source works as supposed, which is good, but it would be nice to understand why it failed before.

[nickarls]

Bugs that disappear without a warning have a tendency of re-appearing when you need them the least.

It could of course be a build problem where some old class has been left lingering somewhere...

[rhn-support-rhsilva]

You should use the lookup attribute.

@Resource(lookup="java:MySqlDS")

DataSource defaultDS;