Springboot项目出现java.lang.ArrayStoreException的异常分析

时间：2022-06-02 10:04:26|栏目：JAVA代码|点击：次

参考文献：https://www.jb51.net/article/232858.htm

使用springboot 2 构建项目，调试代码的时候出现了如下的报错信息

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1708)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1325)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1291)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1096)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818)
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724)
    ... 36 common frames omitted
Caused by: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
    at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:724)
    at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:531)
    at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:355)
    at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286)
    at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
    at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
    at java.lang.Class.createAnnotationData(Class.java:3521)
    at java.lang.Class.annotationData(Class.java:3510)
    at java.lang.Class.createAnnotationData(Class.java:3526)
    at java.lang.Class.annotationData(Class.java:3510)
    at java.lang.Class.getAnnotation(Class.java:3415)
    at java.lang.reflect.AnnotatedElement.isAnnotationPresent(AnnotatedElement.java:258)
    at java.lang.Class.isAnnotationPresent(Class.java:3425)
    at org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation(AnnotatedElementUtils.java:573)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.isHandler(RequestMappingHandlerMapping.java:177)
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:217)
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:188)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:129)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704)
    ... 50 common frames omitted

第一眼看到这个问题的时候感觉头都比较大，那只能调试断定，新建一个断点，类型是Java Exception Breakpoint，异常类是上面抛出来的java.lang.ArrayStoreException，

通过调试查看是找不到org.springframework.boot.actuate.autoconfigure.EndpointAutoConfiguration这个类，而AnnotationParser.parseClassValue把异常包装成为Object，然后在sun.reflect.annotation.AnnotationParser.parseClassArray(int, ByteBuffer, ConstantPool, Class

result[i] = parseClassValue(buf, constPool, container);

而这里数组越界了，ArrayStoreException只有越界的Object的类型信息，也就是上面的

java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy

发现是java.lang.ClassNotFoundException: org.springframework.boot.actuate.autoconfigure.EndpointAutoConfiguration，则加上@ConditionalOnClass的检查就可以了.

准确来说是spring boot2把一些类的package改了：

spring boot 1里类名是：

org.springframework.boot.actuate.autoconfigure.EndpointAutoConfiguration

spring boot 2里类名是：

org.springframework.boot.actuate.autoconfigure.endpoint.EndpointAutoConfiguration

而我解决的办法就比较简单粗暴，把项目再细分化，把一些有影响的pom项目（activiti-spring-boot-starter-basic）放到一个新的项目中去，独立成一个模块来使用。

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