[rules-users] Loading external KieModule fails with NullPointerException

[Jean-Philippe Steinmetz]

I have kie-ci on the class path and I don't believe the settings.xml is
necessary when the repo i'm pulling from is local on the same machine.

I was able to resolve the issue it seems. It turns out I had extra
dependencies being declared in a parent pom. When I pulled those out and
placed them in the module's pom instead it seems to have fixed the issue.
Although, I can see this being an issue down the road. KieServices should
be able to reconcile a parent pom if referenced. Perhaps this is a bug?

Jean-Philippe


On Mon, Mar 31, 2014 at 4:34 PM, Mark Proctor <mproctor at codehaus.org> wrote:

> you'll need kie-ci on the class path, and don't forget to create your
> settings.xml
>
> http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/KIEChapter.html#KIEDeployingSection
>
> Mark
> On 31 Mar 2014, at 23:28, Jean-Philippe Steinmetz <caskater47 at gmail.com>
> wrote:
>
> Hello,
>
> I am trying to set up a simple Drools (6.0.1.Final) application that pulls
> a kmodule from an external jar that is installed in the local Maven
> repository. Unfortunately when my code executes the newKieContainer method
> it crashes with a NullPointerException.
>
> Here is my code...
>
>     KieServices kieServices = KieServices.Factory.get();
>     ReleaseId releaseId = kieServices.newReleaseId("com.mycompany",
> "mymodule", "1.0-SNAPSHOT");
>     KieContainer kContainer = kieServices.newKieContainer(releaseId);
>
> And here is the output I get...
>
> [pool-1-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-3-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-5-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-7-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-9-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-11-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-13-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-15-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> [pool-17-thread-1] INFO
> com.ning.http.client.providers.netty.NettyAsyncHttpProvider - Number of
> application's worked threads is 16
> Disconnected from the target VM, address: '127.0.0.1:51890', transport:
> 'socket'
> Exception in thread "main" java.lang.NullPointerException
>  at
> org.kie.scanner.KieRepositoryScannerImpl.addDependencies(KieRepositoryScannerImpl.java:128)
> at
> org.kie.scanner.KieRepositoryScannerImpl.buildArtifact(KieRepositoryScannerImpl.java:119)
>  at
> org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:90)
> at
> org.kie.scanner.KieRepositoryScannerImpl.loadArtifact(KieRepositoryScannerImpl.java:83)
>  at
> org.drools.compiler.kie.builder.impl.KieRepositoryImpl.loadKieModuleFromMavenRepo(KieRepositoryImpl.java:113)
> at
> org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:99)
>  at
> org.drools.compiler.kie.builder.impl.KieRepositoryImpl.getKieModule(KieRepositoryImpl.java:76)
> at
> org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:84)
>
> The module has the following dependencies listed in the pom.xml.
>
> <dependencies>
>     <!-- Drools -->
>       <dependency>
>           <groupId>org.drools</groupId>
>           <artifactId>drools-core</artifactId>
>           <version>${drools.version}</version>
>           <scope>compile</scope>
>       </dependency>
>       <dependency>
>           <groupId>org.drools</groupId>
>           <artifactId>drools-compiler</artifactId>
>           <version>${drools.version}</version>
>           <scope>compile</scope>
>       </dependency>
>       <dependency>
>           <groupId>org.drools</groupId>
>           <artifactId>drools-decisiontables</artifactId>
>           <version>${drools.version}</version>
>           <scope>compile</scope>
>       </dependency>
>       <dependency>
>           <groupId>org.drools</groupId>
>           <artifactId>drools-persistence-jpa</artifactId>
>           <version>${drools.version}</version>
>           <scope>compile</scope>
>       </dependency>
>       <!-- Misc -->
>       <dependency>
>   <groupId>org.slf4j</groupId>
>   <artifactId>slf4j-api</artifactId>
>   <version>1.7.6</version>
> </dependency>
>     <dependency>
>       <groupId>junit</groupId>
>       <artifactId>junit</artifactId>
>       <version>3.8.1</version>
>       <scope>test</scope>
>     </dependency>
> </dependencies>
>
> I have tried searching for help on this but am unable to find anything
> related. Any help here is appreciated.
>
> Thanks!
>
> Jean-Philippe Steinmetz
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