[jboss-user] [JBoss Seam] - Seam2 bug with Quartz?
Seam 2.0.0.GA, JBoss 4.2.1
Hi, I'm fairly sure this is a Seam bug.
I've set up an ObserveInitilization class as suggested by Pete Muir here:
http://in.relation.to/Bloggers/DoingSomethingAtStartupWithSeam
It looks like this:
|
| @Name("observeInitialization")
| public class ObserveInitialization {
|
| @In(create=true)
| Updater updater;
|
| @Observer("org.jboss.seam.postInitialization")
| public void start() {
| initialize(30 * 1000l);
| }
|
| @Asynchronous
| public void initialize(@Duration long durationInMilliseconds) {
| updater.update(new Date(), "0 0/3 * * * ?");
| }
| }
|
|
The Updater class looks like this:
@Name("updater")
| public class Updater {
|
| @In
| private EntityManager entityManager;
|
| @Logger
| private Log log;
|
| @Asynchronous
| public void update(@Expiration Date start, @IntervalCron String cron) {
| //...
| }
| }
The issue is this code calls ThreadPoolDispatcher.scheduleWithExecutorService, which casts
the return value of createSchedule to a TimerSchedule.
Because I'm using an @IntervalCron the return value of createSchedule is a
CronSchedule which extends Schedule, but not TimerSchedule, so I get a ClassCastException
09:14:59,387 ERROR [[/admin]] Exception sending context initialized event to listener
instance of class org.jboss.seam.servlet.SeamListener
| java.lang.ClassCastException: org.jboss.seam.async.CronSchedule
| at
org.jboss.seam.async.ThreadPoolDispatcher.scheduleInvocation(ThreadPoolDispatcher.java:47)
| at
org.jboss.seam.async.ThreadPoolDispatcher.scheduleInvocation(ThreadPoolDispatcher.java:29)
| 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:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
| at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
| at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
| at
org.jboss.seam.async.ThreadPoolDispatcher_$$_javassist_6.scheduleInvocation(ThreadPoolDispatcher_$$_javassist_6.java)
| at
org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:38)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
| at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
| at com.company.Updater_$$_javassist_5.update(Updater_$$_javassist_5.java)
| at com.company.ObserveInitialization.initialize(ObserveInitialization.java:29)
|
I compared this to the Quartz example packaged with Seam.
That example also calls createSchedule but as a parameter to
QuartzDispatcher.scheduleWithQuartzService which accepts a Schedule, thus no
ClassCastException.
Has anyone else run into this?
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106832#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...