org.quartz.SchedulerException

ConnectionProvider class 'org.quartz.utils.PoolingConnectionProvider' could not be instantiated. [See nested exception: java.lang.InstantiationException: org.quartz.utils.PoolingConnectionProvider]

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This happens when you try to instantiate a class that can't be instantiated, either because the class object is abstract, an interface, an array class, a primitive type, void, or because the class has no nullary constructor.

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  • ConnectionProvider class 'org.quartz.utils.PoolingConnectionProvider' could not be instantiated. [See nested exception: java.lang.InstantiationException: org.quartz.utils.PoolingConnectionProvider]
  • SchedulerPlugin class 'org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin' could not be instantiated. [See nested exception: java.lang.ClassNotFoundException: Unable to load class org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin by any known loaders.]
  • SchedulerPlugin class 'SimpleQuartzExample' could not be instantiated. [See nested exception: java.lang.ClassCastException: com.PlugInExample cannot be cast to org.quartz.spi.SchedulerPlugin]
  • Stack trace

    • org.quartz.SchedulerException: ConnectionProvider class 'org.quartz.utils.PoolingConnectionProvider' could not be instantiated. [See nested exception: java.lang.InstantiationException: org.quartz.utils.PoolingConnectionProvider] at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:906) at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1484) at org.quartz.impl.StdSchedulerFactory.getDefaultScheduler(StdSchedulerFactory.java:1500) at TestQuartz.main(TestQuartz.java:23) Caused by: java.lang.InstantiationException: org.quartz.utils.PoolingConnectionProvider at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:904) ... 3 more

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