java.lang.ClassNotFoundException

Unable to load class null by any known loaders.


Solutions on the web6182

Solution icon of terracotta
Unable to load class null by any known loaders.

Solution icon of terracotta
Unable to load class com.fidsec.quartz.SimpleQuartzJob by any known loaders.

Solution icon of terracotta
Unable to load class org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin by any known loaders.

Solution icon of web
via terracotta.org by Unknown author, 1 year ago
Unable to load class org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin by any known loaders.

Solution icon of terracotta
Unable to load class com.fidsec.quartz.SimpleQuartzJob by any known loaders.

Solution icon of stackoverflow
Could not map discriminator value "MERCHANT" to any known subclasses of the requested class "my.app.model.UserAccount" (known discriminator values: [UserAccount]).

Solution icon of googlegroups
via Google Groups by Eric Tietz, 1 year ago
"Unable to load class com.ibm.bsf.BSFManager"

Solution icon of oraclecommunity
via Oracle Community by 843835, 1 year ago
Unable to load class com.mysql.jdbc.Driver

Solution icon of oraclecommunity
via Oracle Community by 843835, 1 year ago
Unable to load class TestBean

Solution icon of oraclecommunity
via Oracle Community by 843833, 1 year ago
Unable to load class _0002flogon_0002ejsplogon_jsp_0

Stack trace

  • java.lang.ClassNotFoundException: Unable to load class null by any known loaders. at org.quartz.simpl.CascadingClassLoadHelper.loadClass(CascadingClassLoadHelper.java:128) at org.quartz.xml.XMLSchedulingDataProcessor.process(XMLSchedulingDataProcessor.java:653) at org.quartz.xml.XMLSchedulingDataProcessor.processFile(XMLSchedulingDataProcessor.java:501) at org.quartz.xml.XMLSchedulingDataProcessor.processFileAndScheduleJobs(XMLSchedulingDataProcessor.java:835) at org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin.processFile(XMLSchedulingDataProcessorPlugin.java:317) at org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin.start(XMLSchedulingDataProcessorPlugin.java:245) at org.quartz.plugins.SchedulerPluginWithUserTransactionSupport.start(SchedulerPluginWithUserTransactionSupport.java:144) at org.quartz.core.QuartzScheduler.startPlugins(QuartzScheduler.java:2316) at org.quartz.core.QuartzScheduler.start(QuartzScheduler.java:492) at org.quartz.impl.StdScheduler.start(StdScheduler.java:143) at org.quartz.ee.servlet.QuartzInitializerServlet.init(QuartzInitializerServlet.java:184)

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.