Spring项目中 findCandidateComponents 报错exception is java.lang.ArrayIndexOutOfBoundsException:

最近接手一个老项目，写了点新代码，跑单元测试的时候，发现报错，一个业务类报错，报错如下Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\Workspace\content\contentV10.5\

whp404

4368人浏览 · 2022-03-15 18:21:42

whp404 · 2022-03-15 18:21:42 发布

最近接手一个老项目，写了点新代码，跑单元测试的时候，发现报错，一个业务类报错，报错如下

Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\Workspace\content\contentV10.5\xxxxx\mzss-service\target\classes\com\suning\mzss\video\service\BaseVContentService.class]; nested exception is java.lang.ArrayIndexOutOfBoundsException: 9578
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:261)
	at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242)
	at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84)
	at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1419)
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1409)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:184)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:140)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:111)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:243)
	at org.springframework.test.context.support.AbstractGenericContextLoader.loadBeanDefinitions(AbstractGenericContextLoader.java:205)
	at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:100)
	at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:1)
	at org.springframework.test.context.support.DelegatingSmartContextLoader.loadContext(DelegatingSmartContextLoader.java:228)
	at org.springframework.test.context.TestContext.loadApplicationContext(TestContext.java:124)
	at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:148)
	... 27 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 9578
	at org.springframework.asm.ClassReader.readClass(Unknown Source)
	at org.springframework.asm.ClassReader.accept(Unknown Source)
	at org.springframework.asm.ClassReader.accept(Unknown Source)
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:59)
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80)
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:101)
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:237)
	... 49 more

很明显就是一个spring启动，查找bean过程报错，但是自己只在BaseVContentService加了一个新方法，去掉的话，单元测试正常，所以抱着试试看的心态，查了下 Spring + ArrayIndexOutOfBoundsException

发现了这个文章

一个离奇的ArrayIndexOutOfBoundsException异常的排查过程

恰好发现这个老项目也是 spring 3.2 的，当我把 stream语法去掉，测试代码运行正常，又一顿百度，这篇文章和我问题一样
由于spring3.x版本与jdk1.8不兼容导致的java.lang.ArrayIndexOutOfBoundsException: 22272

原因如下

在ASM的核心实现中ClassReader类：字节码的读取与分析引擎。它采用类似SAX的事件读取机制，每当有事件发生时，调用注册的ClassVisitor、AnnotationVisitor、FieldVisitor、MethodVisitor做相应的处理,在构建ClassReader实例时，它首先保存字节码二进制数组b，然后创建items数组，数组的长度在字节码数组的第8、9个字节指定.就是这个地方出现索引下标超出范围 在官网发现org.objectweb.asm 在spring3.x版本中对兰布达表达式出现了不兼容问题，因为兰布达必须要1.8以上版本，而在spring3.x中是不适用的。

怕升级spring版本导致项目问题，所以就不写java8语法了。。。