[Building Sakai] a quartz question

[Zhen Qian]

Hello, Sakai Developers:

We have had some local quartz job stopped working since 2.9 upgrade.

The code uses "StdSchedulerFactory.getDefaultScheduler();" to get the
Scheduler instance.

However, it now throws the following exception:

"org.quartz.SchedulerConfigException: Unable to instantiate class load
helper class: org.quartz.simpl.CascadingClassLoadHelper cannot be cast to
org.quartz.spi.ClassLoadHelper [See nested exception:
java.lang.ClassCastException: org.quartz.simpl.CascadingClassLoadHelper
cannot be cast to org.quartz.spi.ClassLoadHelper]"

We are with quartz 1.5.2.

Any suggestions/ideas to avoid this problem?

Thanks,

- Zhen
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