When deploying to Wildfly 8.2.1 I received ClassNotFoundException PushMode

Vaadin 6 / 7 / 8
1

Hi all,
I have created an application which is using vaadin-push. I have annotated my UI with @Push annotation.
When I deploy my EAR to wildfly, it gives the following error:

[code]
Caused by: java.lang.NoClassDefFoundError: com/vaadin/shared/communication/PushMode
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at sun.reflect.annotation.AnnotationType$1.run(AnnotationType.java:112)
at sun.reflect.annotation.AnnotationType$1.run(AnnotationType.java:109)
at java.security.AccessController.doPrivileged(Native Method)
at sun.reflect.annotation.AnnotationType.(AnnotationType.java:109)
at sun.reflect.annotation.AnnotationType.getInstance(AnnotationType.java:85)
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:266)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
at java.lang.Class.createAnnotationData(Class.java:3521)
at java.lang.Class.annotationData(Class.java:3510)
at java.lang.Class.getAnnotation(Class.java:3415)
at org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.extractExcludeAnnotation(ExcludeExtension.java:185)
at org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.vetoBeans(ExcludeExtension.java:156)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:90)
… 16 more
Caused by: java.lang.ClassNotFoundException: com.vaadin.shared.communication.PushMode from [Module "deployment.example-exchange-ear.ear.example-exchange-web.war:main" from Service Module Loader]

    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134)
    ... 36 more

[/code]My application class is defined as follows:

[code]
@CDIUI(“”)
@Theme(“valo”)
@Push
public class ApplicationUI extends UI {
@Inject
private CDIViewProvider viewProvider;

@Override
protected void init(VaadinRequest vaadinRequest) {
    Navigator navigator = new Navigator(this, this);
    navigator.addProvider(this.viewProvider);
    navigator.navigateTo(MyView.NAME);
}

}
[/code]Can you please advise? I am not sure what I am doing wrong. Does Vaadin need to be added to Wildfly as a module?

Thanks,

Jose

2

You’re probably not including the vaadin-push package

3

Hi Patrik! How do I include the vaadin-push package? I am using Maven, and Wildfly plugin for deployment.

4

Please refer to
this wiki article
 - if that doesn’t help, we’ll try to check specifics.
Basically, as long as Maven is told to include vaadin-push, it should deploy just fine on Wildfly. I’m not really sure why it’s not doing that by default, though, but I can ask around.

5

Just deployed by dropping the file manually in Wildfly. So it seems to be the Wildfly deployment plugin that is not working.

6

I’ll test Vaadin CDI deployment with Maven and mvn:wildfly when time permits, right now I’m a bit busy… If it turns out there’s something screwy with the deployment (that’s not attributable to a simple configuration quirk), I’ll file a bug.

As for why vaadin-push is not included as a dependency in the vaadin metapackage, it’s because it might conflict with existing stuff in the server, and not everyone wants it - leaving it out reduces bloat and loadtime in the resulting war (this is what I heard from a senior dev).

7

…actually, what do you mean by “file”? It should work if you have vaadin-push as a Maven dependency.