Creation of InitialContext fails when i hot-deploy scheduler-service.xml
I configured scheduler-service as follows in Jboss 3.2:
scheduler-service.xml
true
com.beta.my.utils.FMScheduler
Schedulabe Test,12345
java.lang.String,int
0
10000
-1
Schedulable Class
package com.beta.my.utils;
import java.util.Date;
import org.jboss.varia.scheduler.Schedulable;
public static class FMScheduler
implements Schedulable
{
private String mName;
private int mValue;
public FMScheduler(String pName,int pValue)
{
mName = pName;
mValue = pValue;
}
public void perform(Date pTimeOfCall,long pRemainingRepetitions)
{
try {
Context context = new InitialContext();//properties taken
from jndi.properties file
} catch (Exception e){
e.printStackTrace();
}
}
}
I started my jboss..,FMScheduler created successfully, perform method in
FMScheduler called succesfully after SchedulePeriod(1000)
The problem occurs(NullPointerException) while i changed SchedulePeriod time
and hot-deployed(just saved scheduler-service.xml).
The following Exception occures due to new InitialContext creation in
FMScheduler.
17:46:27,361 ERROR [STDERR] java.lang.NullPointerException
17:46:27,361 ERROR [STDERR] at org.jboss.mx.loading.UnifiedClassLoader.findR
esources(UnifiedClassLoader.java:374)
17:46:27,361 ERROR [STDERR] at java.lang.ClassLoader.getResources(ClassLoade
r.java:825)
17:46:27,361 ERROR [STDERR] at com.sun.naming.internal.VersionHelper12$5.run
(VersionHelper12.java:145)
17:46:27,361 ERROR [STDERR] at java.security.AccessController.doPrivileged(N
ative Method)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.VersionHelper12.getRe
sources(VersionHelper12.java:142)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.ResourceManager.getAp
plicationResources(ResourceManager.java:468)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.ResourceManager.getIn
itialEnvironment(ResourceManager.java:159)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.init(InitialConte
xt.java:215)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.(InitialCon
text.java:195)
17:46:27,377 ERROR [STDERR] at com.beta.my.utils.FMScheduler.perform
(FMScheduler.java:42)
17:46:27,392 ERROR [STDERR] at org.jboss.varia.scheduler.Scheduler$Listener.
handleNotification(Scheduler.java:1263)
17:46:27,392 ERROR [STDERR] at org.jboss.mx.server.NotificationListenerProxy
.handleNotification(NotificationListenerProxy.java:69)
17:46:27,392 ERROR [STDERR] at javax.management.NotificationBroadcasterSuppo
rt.sendNotification(NotificationBroadcasterSupport.java:95)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.sendNotification
s(Timer.java:441)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.access$000(Timer
.java:31)
17:46:27,408 ERROR [STDERR] at javax.management.timer.Timer$RegisteredNotifi
cation.doRun(Timer.java:612)
17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.SchedulableRunnable.run(Sch
edulableRunnable.java:164)
17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.ThreadPool$Worker.run(Threa
dPool.java:225)
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