I had little changes actually i changed artifactId’s and groupId’s of modules (also change corresponding package namings) could it be a problem there?

here is the error

[INFO] ————————————————————————
[ERROR] FATAL ERROR
[INFO] ————————————————————————
[INFO] null
[INFO] ————————————————————————
[INFO] Trace
java.lang.NullPointerException
at org.apache.maven.plugin.war.util.WebappStructure.getDependencies(Weba
ppStructure.java:109)
at org.apache.maven.plugin.war.util.WebappStructure.analyseDependencies(
WebappStructure.java:288)
at org.apache.maven.plugin.war.packaging.DependenciesAnalysisPackagingTa
sk.performPackaging(DependenciesAnalysisPackagingTask.java:46)
at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMo
jo.java:439)
at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(Abstr
actWarMojo.java:375)
at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:181
)
at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:143)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi
nManager.java:453)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
ultLifecycleExecutor.java:559)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLi
fecycle(DefaultLifecycleExecutor.java:500)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau
ltLifecycleExecutor.java:479)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan
dleFailures(DefaultLifecycleExecutor.java:331)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen
ts(DefaultLifecycleExecutor.java:292)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi
fecycleExecutor.java:142)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:301)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)

at org.codehaus.classworlds.Launcher.main(Launcher.java:375)

Great tutorial by the way…

Concerning your ClassNotFoundException, check that you have all three blazeds libraries in WEB-INF/lib in your web application. If you don’t, double check your Maven dependencies.

Okay.. using everything as directed (MySQL 5.5.51b, JBoss 4.2.2) When I take the code from the attached zip file, I run ~mvn install~ successfully but when I deploy I get class not found exception

java.lang.ClassNotFoundException: flex.messaging.MessageBrokerServlet

could this be the result of some part of the repository not downloading?

Here’s a bit more of the stack trace…

13:40:32,610 INFO [[/todolist-web]] Marking servlet MessageBrokerServlet as unavailable
13:40:32,610 ERROR [[/todolist-web]] Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
———-> Parent Classloader:
java.net.FactoryURLClassLoader@1aabc29
flex.messaging.MessageBrokerServlet
java.lang.ClassNotFoundException: flex.messaging.MessageBrokerServlet

(1) There seems to be slight inconsistency between the package structure you quote on the site and the downloadable code (which seems to be more up to date).

for example the instructions say to create TodoService and TodoServiceImpl in the org.epseelon.samples.todolist.business package, when the hibernate file is looking for the classes in org.epseelon.samples.todolist.model.service

Not a big deal at all, but definitely some minutia to fix, and I’d love to hear your opinion on what the best practice is for creating your packages for an application like this.

Otherwise.. GREAT GREAT GUIDE!!! Thank you so much for putting in the work to assemble all this stuff in one place. Many of the “tutorials” that i’ve seen for Flex-Spring-Hibernate-LCDS (or Blaze DS) dont work at all or leave too much out.

Kudos on a great job

-James