Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,
    Expert tip

    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.

java.lang.InstantiationException: boolean	at java.lang.Class.newInstance0(Class.java:340)	at java.lang.Class.newInstance(Class.java:308)	at org.springframework.beans.TypeConverterDelegate.convertToTypedMap(TypeConverterDelegate.java:634)	at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:236)	at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:104)	at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:419)	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:657)	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:191)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:984)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:888)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:479)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450)	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290)	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287)	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189)	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562)	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871)