1 Reply Latest reply on Sep 19, 2012 2:32 PM by thomas.diesler

[osgi & javaEE] Trouble with ClassNotFoundException (dependencies added)

cberger Sep 18, 2012 12:57 PM

EDIT: I found my error I had to use the osgi.enterprise bundle instead of osgi.compendium!

Sorry for any inconvenience!

Hi,

I'm migrating an osgi application to JBoss 7.1.1. Unfortunately, I have some trouble while I was playing with osgi & javaee interaction. I want to access an osgi service from an ejb3.1 component, so I implemented a little example ...

@Stateless

@LocalBean

public class SimpleStatelessSessionBean {

...

@Resource

private BundleContext context;

private SecurityService service;

@PostConstruct

public void init() {

ServiceReference sr = context.getServiceReference(SecurityService.class.getName());

if(sr!=null) {

SecurityService securityService = (SecurityService) context.getService(sr);

if(securityService!=null && securityService.getCurrentAuthorization()!=null) {

log.infof("Security system name: "+securityService.getCurrentAuthorization().getName());

} else {

log.infof("No service available");

}

} else {

log.infof("No service reference found!");

}

public String getHello() {

if (service == null)

return "SecurityService not available";

if (service.getCurrentAuthorization()!=null){

return "Security system name: "+service.getCurrentAuthorization().getName();

} else {

return "CurrentAuthorization not available";

}

A servlet is calling the getHello method from the SimpleStatelessSessionBean:

@WebServlet(name="SimpleBeanClientServlet", urlPatterns={"/ejb"})

public class SimpleBeanClientServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

@EJB(lookup = "java:global/exampleEAR/exampleEJB/SimpleStatelessSessionBean")

private SimpleStatelessSessionBean bean;

@Override

protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

String message = process();

PrintWriter out = res.getWriter();

out.println(message);

out.close();

}

private String process() {

return bean.getHello();

}

The SecurityService is an exported service of the osgi bundle gofer-security-api, therefore I added all required dependencies in the ejb manifest file:

Manifest-Version: 1.0

Dependencies: org.osgi.core, deployment.gofer-security-api:6.8.0.r201207230906, deployment.osgi.cmpn:4.2.0.200908310645

After invoking the service I've got the following stack trace:

11:26:14,385 INFO [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS015003: Found exampleEAR.ear in deployment directory. To trigger deployment create a file called exampleEAR.ear.dodeploy

11:26:14,396 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015876: Starting deployment of "exampleEAR.ear"

11:26:14,423 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015876: Starting deployment of "exampleWAR.war"

11:26:14,424 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015876: Starting deployment of "exampleEJB.jar"

11:26:14,482 INFO [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-5) JNDI bindings for session bean named SimpleStatelessSessionBean in deployment unit subdeployment "exampleEJB.jar" of deployment "exampleEAR.ear" are as follows:

java:global/exampleEAR/exampleEJB/SimpleStatelessSessionBean!com.mwaysolutions.ejb.SimpleStatelessSessionBean

java:app/exampleEJB/SimpleStatelessSessionBean!com.mwaysolutions.ejb.SimpleStatelessSessionBean

java:module/SimpleStatelessSessionBean!com.mwaysolutions.ejb.SimpleStatelessSessionBean

java:global/exampleEAR/exampleEJB/SimpleStatelessSessionBean

java:app/exampleEJB/SimpleStatelessSessionBean

java:module/SimpleStatelessSessionBean

11:26:14,526 INFO [org.jboss.web] (MSC service thread 1-7) JBAS018210: Registering web context: /exampleWAR

11:26:14,554 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS018559: Deployed "exampleEAR.ear"

11:26:14,556 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report

JBAS014776: Newly corrected services:

service jboss.module.spec.service."deployment.osgi.compendium"."4.2.0.200908310645" (new available)

11:29:30,370 ERROR [org.jboss.ejb3.invocation] (http-localhost-127.0.0.1-8081-1) JBAS014134: EJB Invocation failed on component SimpleStatelessSessionBean for method public java.lang.String com.mwaysolutions.ejb.SimpleStatelessSessionBean.getHello(): javax.ejb.EJBException: Unexpected Error

at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:163) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:230) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:304) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:190) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:32) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:173) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at com.mwaysolutions.ejb.SimpleStatelessSessionBean$$$view4.getHello(Unknown Source) [exampleEJB.jar:]

at com.mwaysolutions.servlet.SimpleBeanClientServlet.process(SimpleBeanClientServlet.java:33)

at com.mwaysolutions.servlet.SimpleBeanClientServlet.doGet(SimpleBeanClientServlet.java:26)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)

at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)

at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_35]

Caused by: java.lang.NoClassDefFoundError: org/osgi/service/useradmin/Authorization

at com.mwaysolutions.ejb.SimpleStatelessSessionBean.init(SimpleStatelessSessionBean.java:34) [exampleEJB.jar:]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_35]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_35]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_35]

at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_35]

at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptorFactory$ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptorFactory.java:130) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.ManagedReferenceFieldInjectionInterceptorFactory$ManagedReferenceFieldInjectionInterceptor.processInvocation(ManagedReferenceFieldInjectionInterceptorFactory.java:112) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]

at org.jboss.as.ee.component.ManagedReferenceInterceptorFactory$ManagedReferenceInterceptor.processInvocation(ManagedReferenceInterceptorFactory.java:95) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]