OK, found the problem!
 
In my package I was having a model "testModel" that had no facts declared.
This was causing the NPE when building the package.
So I think we need to check for this case or not allow the user to do this.
 
--zoly
 
 


From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Zoltan Farkas
Sent: Friday, January 16, 2009 9:51 AM
To: Rules Dev List
Subject: RE: [rules-dev] NPE when building package

Yes, I did a standalone test and in passes.
 
In my test I used the text version of the package from guvnor, that I believe is generated by ContentPackageAssembler.getDRL().
however PackageBuilder has no issues with that version.
 
Now my next place to investigate is guvnors ContentPackageAssembly...
 
and the NPE happens as I can see from the stack trace in: ContentPackageAssembly.loadDeclaredTypes.
 
If you have any sugestions to better approach solving this problem let me know. As it is right now I will look into the code and try to understand what is going on.
 
regards
 
--zoly
 
 


From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Mark Proctor
Sent: Thursday, January 15, 2009 6:26 PM
To: Rules Dev List
Subject: Re: [rules-dev] NPE when building package

Zoltan Farkas wrote:
Hi Mark, I need to have the unit test inside guvnor or another project that depends on it.
 
The code fails in guvnor when I do build package.
 
and I believe the problem might be related to BRMSPackageBuilder that inherits from PackageBuilder or ContentPackageAssembler
 
where should I create the unit test ?
Have you tried doing this as a standalone unit test first? As the problem will be in the PackageBuilder, not in the Guvnor. Just following one of the examples in MiscTest.

Mark
 
 
--zoly


From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Mark Proctor
Sent: Thursday, January 15, 2009 4:48 PM
To: Rules Dev List
Subject: Re: [rules-dev] NPE when building package

Zoltan Farkas wrote:
the actual package namespace contains dots, I removed them for privacy purposes.
ok, can i ask you to make a unit test for me, that I can put into MiscTest ?
http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/integrationtests/MiscTest.java

Thanks

Mark
 
--zoly


From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Mark Proctor
Sent: Thursday, January 15, 2009 4:26 PM
To: Rules Dev List
Subject: Re: [rules-dev] NPE when building package

Zoltan Farkas wrote:
I am getting a NPE when building a package with guvnor:
I think it might be a bug when a package namespace doesn't have a dot in it.

Mark
 
 
java.lang.NullPointerException
        at org.drools.compiler.PackageBuilder.validateUniqueRuleNames(PackageBuilder.java:826)
        at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:548)
        at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:287)
        at org.drools.guvnor.server.builder.ContentPackageAssembler.loadDeclaredTypes(ContentPackageAssembler.java:249)
        at org.drools.guvnor.server.builder.ContentPackageAssembler.preparePackage(ContentPackageAssembler.java:216)
        at org.drools.guvnor.server.builder.ContentPackageAssembler.<init>(ContentPackageAssembler.java:103)
        at org.drools.guvnor.server.builder.ContentPackageAssembler.<init>(ContentPackageAssembler.java:117)
        at org.drools.guvnor.server.ServiceImplementation.buildPackage(ServiceImplementation.java:1366)
        at org.drools.guvnor.server.ServiceImplementation.buildPackage(ServiceImplementation.java:1350)
 
 
here is my package source:
 
package MyTest
import pack.EventVO
import pack.ExtendedEventVO
declare ExtendedEventVO
    @role( event )
end
 
rule "Test"
 dialect "mvel"
 when
  ExtendedEventVO( )
 then
  System.out.println("Hello World, events happen!!!")
end

rule 'TestEntryPoint'
dialect 'mvel'
 when
  ExtendedEventVO() from entry-point eventDoor
 then
  System.out.println("Hello World, events happen!!!")
end
 
This seems like a possible BUG.
 
Let me know, thanks
 
--zoly

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