Problem add library in StandardApplicationReferences

[Former Member]

Hi,

I created & deployed a library with some jars that I want to be loaded first.

In provider.xml of the library, I have

<component-name>KMCJaxp</component>

<provider-name>mycompany.com</provider-name>

Then, in Visual Admin - Services - Classloader viewer - Libraries, I can see the library with mycompany.com_{KMCJaxp as its Library name. Then, in Deploy - StandardApplicationReferences, if I add library:mycompany.com}KMCJaxp, after restart J2EE server, a NullPointerException will be thrown when access http://host:port/irj/portal. If I write as library:KMCJaxp, it's fine, but has no use - there's no library named KMCJaxp, only mycompany.com~KMCJaxp.

So what might be the problem?

Thanks,

Ray

[Sigiswald · Accepted solution]

Hi Ray,

Indeed, <i>library:mycompany.com~KMCJaxp</i> is correct. Can you give the NullPointerException stacktrace?

Kind regards,

Sigiswald

[Former Member · Accepted solution]

Hi Sigiswald,

Sorry I don't know where to get the stack trace.. defaultTrace.0.trc is too big to figure out:)

Short message: when calling http://host:port/irj/portal, just a NullPointerException; when calling other URL, it says Dispatcher is not instantized.

Any idea now?

Thanks,

Ray

[Sigiswald · Accepted solution]

If possible, stop the server, delete the trace file, start the server, access /irj/portal and check the trace file for the NullPointerException. It can't be that hard to find.

On the other hand, if you access /irj/portal and a NullPointerException is thrown, it's appended at the end of the trace file. So it shouldn't be that hard to find either, even if the trace file is very large.

BTW, when you modified <i>StandardApplicationReferences</i> in Visual Administrator, I assume you didn't remove the items that were already present? You just added your own application reference?

Kind regards,

Sigiswald

[Former Member · Accepted solution]

Hi,

Thanks, I've looked at the trace, and it reported many ClassNotFoundException:)

But it's OK on another EP. So I gues maybe I need patch my EP.

I am using NW04 SP16 Full Java Edition (90-day trial). Do you know where can I get SP for this?

Thanks,

Ray

[Sigiswald · Accepted solution]

No patches for sneak previews I'm afraid...

The ClassNotFoundExceptions don't apply to your own library?

Kind regards,

Sigiswald

[Vlado · Accepted solution]

Hi Ray,

All trial and preview versions can be downloaded from <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cfc19866-0401-0010-35b2-dc8158247fb6">here</a>. However, in order to apply a Support Package Stack you need an account for service.sap.com. Then you can download from <a href="https://service.sap.com/patches">https://service.sap.com/patches</a>. And this does not apply to trial versions, I'm afraid.

Best regards,

Vladimir

PS: And just to confirm - <i>library:mycompany.com~KMCJaxp</i> would be the correct name of the reference.

Message was edited by:

Vladimir Pavlov