Hello Vaadin users.
I am a kinda noob in JavaEJB technology and Vaadin.
I have created two enterpriseArchive. One with the Vaadin WebProject and in the other one I dropped the vaadin jar in the EAR/APP-INF/lib, that enables me to create the EJBService ( shown below).
If I remove the createNewButton method, my ctxLookup and sayHello works fine , other wise I get the error (shown below).
I know I must be setting this up somehow wrong but don’t know how to fix. Appreciate any help.
I am using weblogic.
@Stateless(name="ExtraService", mappedName="ExtraService")
@TransactionAttribute(value=TransactionAttributeType.REQUIRED)
public class ExtraButtonsCreationImpl implements ExtraService{
@Override
public Button createNewButton(String caption) {
Button b = new Button(caption);
b.setStyleName(Runo.BUTTON_LINK);
return b;
}
@Override
public String sayHello(String toWho) {
return "Hello" + toWho;
}
}
System.out.println(getExtraService().sayHello(" Mr Lazy"));
body.addComponent(getExtraService().createNewButton("Lazy Boy"));
private ExtraService getExtraService() {
InitialContext ctx;
try {
ctx = new InitialContext();
ExtraService service =
(ExtraService) ctx.lookup("ExtraService#com.extranote.model.ExtraService");
return service;
} catch (NamingException e) {
e.printStackTrace();
}
return null;
}
com.vaadin.event.ListenerMethod$MethodException
Cause: java.lang.NoClassDefFoundError: com/vaadin/ui/Button
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:507)
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1154)
at com.vaadin.ui.Button.fireClick(Button.java:371)
at com.vaadin.ui.Button.changeVariables(Button.java:193)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1094)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:590)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:266)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:476)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:183)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.doIt(WebAppServletContext.java:3686)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3650)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2268)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2174)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1446)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Caused by: java.lang.NoClassDefFoundError: com/vaadin/ui/Button
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.privateGetPublicMethods(Class.java:2547)
at java.lang.Class.getMethods(Class.java:1410)
at sun.misc.ProxyGenerator.generateClassFile(ProxyGenerator.java:409)
at sun.misc.ProxyGenerator.generateProxyClass(ProxyGenerator.java:306)
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:501)
at weblogic.common.internal.ProxyClassResolver.resolveProxyClass(ProxyClassResolver.java:98)
at weblogic.common.internal.WLObjectInputStream.resolveProxyClass(WLObjectInputStream.java:76)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1531)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1493)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at weblogic.rmi.extensions.server.CBVInputStream.readObject(CBVInputStream.java:64)
at weblogic.jndi.internal.JNDIHelper.copyObject(JNDIHelper.java:28)
at weblogic.jndi.WLSJNDIEnvironmentImpl.copyObject(WLSJNDIEnvironmentImpl.java:77)
at weblogic.jndi.internal.WLEventContextImpl.copyObject(WLEventContextImpl.java:369)
at weblogic.jndi.internal.WLEventContextImpl.lookup(WLEventContextImpl.java:255)
at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:393)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at com.finenotes.MainApplication.getExtraService(MainApplication.java:175)
at com.finenotes.MainApplication.insertNoteComponent(MainApplication.java:151)
at com.finenotes.MainApplication.startApplication(MainApplication.java:72)
at com.finenotes.MainApplication.access$0(MainApplication.java:52)
at com.finenotes.MainApplication$1.buttonClick(MainApplication.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:487)
... 22 more
Caused by: java.lang.ClassNotFoundException: com.vaadin.ui.Button
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:280)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:253)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:177)
... 53 more
