Congrats on getting this far, you are probably very close. Make sure your bundles are both installed and started. I don't know the commands in Felix to check this, but you should be able to install the webconsole at the very least to see it.
Next, be sure that the Service Component Runtime has found your configurations and properly acted on them. I use Blueprint and am not sure of the SCR specifics, but there should be some way to ensure that SCR is started on those bundles (or find out why it hasn't). If you are still having problems at that point, it would help with the exception to know where "line 17" is in your code listings. Brian On Aug 30, 2012, at 2:28 PM, Jörg Wille <[email protected]> wrote: > I am trying out a really easy declarative OSGi example with Netbeans and > the Maven SCR Plugin following this > tutorial<http://netbeans.org/kb/docs/javaee/maven-osgi-declarativeservices.html>( > http://netbeans.org/kb/docs/javaee/maven-osgi-declarativeservices.html). > > > Here is my code (Here <http://www.uploadmb.com/dw.php?id=1346326024> is a > link for both NetBeans projects): > > 1.) Netbeans Maven OSGi Bundle Project "MavenHelloService OSGi Bundle" > > 1.a) Interface HelloService.java in com.joerg.mavenhelloservice.api > > public interface HelloService { > > public String sayHello(String name); > > } > > 1.b) Installer.java > > public class Installer implements BundleActivator { > > @Override > > public void start(BundleContext context) throws Exception { > > String userName = context.getProperty("user.name"); > > System.out.println("User Name: " + userName); > > } > > … > > 1.c) Implematation HelloImpl.java > > public class Installer implements BundleActivator { > > @Component(name="hello-service") > > @Service > > public class HelloImpl implements HelloService { > > @Override > > public String sayHello(String name) { > > return "Hello " + name; > > } > > } > > > > 2.) Netbeans Maven OSGi Bundle Project "HelloClient OSGi Bundle" > > 2.a) Activator.java > > @Component(name="hello-service-consumer") > > public class Activator implements BundleActivator { > > @Reference > > private HelloService helloService; > > @Override > > public void start(BundleContext context) throws Exception { > > System.out.println(helloService.sayHello("Duke")); > > } > > … > > > 3.) The Maven SCR Plugins generates following XML Files in the jars. > > 3.a) In MavenHelloService-1.0-SNAPSHOT.jar serviceComponents.xml: > > <?xml version="1.0" encoding="UTF-8"?><components xmlns:scr=" > http://www.osgi.org/xmlns/scr/v1.0.0";> > > <scr:component enabled="true" name="hello-service"> > > <implementation class="com.joerg.mavenhelloservice.HelloImpl"/> > > <service servicefactory="false"> > > <provide > interface="com.joerg.mavenhelloservice.api.HelloService"/> > > </service> > > <property name="service.pid" value="hello-service"/> > > </scr:component> > > </components> > > 3.b) In HelloClient-1.0-SNAPSHOT.jar serviceComponents.xml: > > <?xml version="1.0" encoding="UTF-8"?><components xmlns:scr=" > http://www.osgi.org/xmlns/scr/v1.0.0";> > > <scr:component enabled="true" name="hello-service-consumer"> > > <implementation class="com.joerg.helloclient.Activator"/> > > <property name="service.pid" value="hello-service-consumer"/> > > <reference name="helloService" > interface="com.joerg.mavenhelloservice.api.HelloService" cardinality="1..1" > policy="static" bind="bindHelloService" unbind="unbindHelloService"/> > > </scr:component> > > </components> > > > I use following software versions: > > Netbeans 7.2 on Mac OS X 10.8.1 with Oracle Java 1.7.0_06 (64bit) > > Maven 4.17.1 (installed with Netbeans) > > Apache Felix Framework 3.0.7 (as Dependency for Service and Client) > > Apache Felix Annotations 1.6.0 (as Dependency for Service and Client) > > Maven SCR Plugin 1.7.4 (added to pom.xml for Service and Client) > > Apache Felix Framework 4.0.3 (on Terminal as OSGi playground) > > > In Terminal I start felix "java -jar /bin/felix.jar" and install+start > bundles: > > start > file:/Volumes/workspace/MavenHelloService/target/MavenHelloService-1.0-SNAPSHOT.jar > > start > file:/Volumes/workspace//HelloClient/target/HelloClient-1.0-SNAPSHOT.jar > > > When starting the HelloClient I get: > > java.lang.NullPointerException > > at com.joerg.helloclient.Activator.start(Activator.java:17) > > at > org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645) > > at org.apache.felix.framework.Felix.activateBundle(Felix.java:1977) > > > Where Activator.java:17 is: > System.out.println(helloService.sayHello("Duke")); > > > Am I missing anything? Or are my scr declarations wrong? --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
