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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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via Atlassian JIRA by Alex Wei [Atlassian], 1 year ago
via Atlassian JIRA by Alex Wei [Atlassian], 2 years ago
java.lang.InstantiationException: com.atlassian.jira.logging.JiraHomeAppender	at java.lang.Class.newInstance0(Class.java:340)	at java.lang.Class.newInstance(Class.java:308)	at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:327)	at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:120)	at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:629)	at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612)	at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509)	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415)	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441)	at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:468)	at org.apache.log4j.LogManager.(LogManager.java:122)	at org.apache.log4j.Logger.getLogger(Logger.java:117)	at com.atlassian.jira.startup.LauncherContextListener.(LauncherContextListener.java:35)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)	at java.lang.Class.newInstance0(Class.java:355)	at java.lang.Class.newInstance(Class.java:308)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3878)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)	at org.apache.catalina.core.StandardService.start(StandardService.java:516)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)