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Unable to instantiate class load helper class: org.quartz.simpl.CascadingClassLoadHelper cannot be cast to org.quartz.spi.ClassLoadHelper
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created by <a href="https://community.jboss.org/people/mtr3691">mtr3691</a> in <i>Beginner's Corner</i> - <a href="https://community.jboss.org/message/649771#649771">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am running JBOSS 5.1.0 GA, which has Quartz embedded. I have an EAR file which is deployed and contains OSGi bundles within it. One of the bundles is a Quartz Open Symphony bundle which is used be web services for scheduling. All objects deploy successfully, but an error is thrown when the scheduler is instantiated...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"> <font color="navy"><b>public</b></font> String start(SCHEDULE_DATA sd) 
<font color="navy">{</font>
  SD2XML sd2xml = <font color="navy"><b>new</b></font> SD2XML();
  String jobDescription = <font color="navy"><b>null</b></font>;
  <font color="navy"><b>if</b></font> ( sd.JOB_NAME == <font color="navy"><b>null</b></font> || sd.JOB_NAME.length() == 0) <font color="navy">{</font>
   sd.JOB_NAME = UUID.randomUUID().toString();
  <font color="navy">}</font>
  initialize(sd);
        logger.info(<font color="red">"Starting scheduled job: "</font>+sd.JOB_NAME + <font color="red">", jobClass: "</font>+sd.JOB_CLASS+<font color="red">", cron expression: "</font>+sd.CRON_EXPRESSION);
  <font color="navy"><b>if</b></font> (validateInputs() && bindJobClass()) <font color="navy">{</font>
   <font color="navy"><b>try</b></font> <font color="navy">{</font>
    sched = <font color="navy"><b>new</b></font> StdSchedulerFactory().getScheduler();
   <font color="navy">}</font> <font color="navy"><b>catch</b></font> (SchedulerException e) <font color="navy">{</font>
    logger.error(e.getLocalizedMessage());
    sd.STATUS = <font color="red">"FAILED"</font>;
    <font color="navy"><b>return</b></font> sd2xml.sd2XML(sd) ;
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The error occurs on the sched = new StdSchedulerFactory().getScheduler() line.......</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>If I remove the embedded Quartz from JBOSS the code works fine. I need to coerce JBOSS into resolving the conflict during runtime, so the OSGi code will work within the JBOSS container.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have tried classloader isolation, EAR isolation, have played with load order or precedence during bootstrap to resolve classes to avoid the error...no success thus far.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Ideas?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Anyone else had this issue?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks!</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>mtr</p></div>
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