java.lang.SecurityException: class “xxxx“‘s signer information does not match signer information

java.lang.SecurityException: class “org.bouncycastle.jcajce.provider.symmetric.IDEA$Mappings”'s signer information does not match signer information of other classes in the same package，这是jar包冲突的bug。

1.详细报错信息：

Caused by: java.lang.SecurityException: class “org.bouncycastle.jcajce.provider.symmetric.IDEA$Mappings”'s signer information does not match signer information of other classes in the same package
[2020-08-31 14:30:57] [77]-[com.dianju.core.SystemOutPrint]-[INFO] at java.lang.ClassLoader.checkCerts(ClassLoader.java:891)
[2020-08-31 14:30:57] [77]-[com.dianju.core.SystemOutPrint]-[INFO] at java.lang.ClassLoader.preDefineClass(ClassLoader.java:661)
[2020-08-31 14:30:57] [77]-[com.dianju.core.SystemOutPrint]-[INFO] at java.lang.ClassLoader.defineClass(ClassLoader.java:754)
[2020-08-31 14:30:57] [77]-[com.dianju.core.SystemOutPrint]-[INFO] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2.详细解决方案：

1.开发工具界面找到maven，点击图中的1红框中标识

2.点击之后出现依赖图，点击Actual Size，即可查看详细内容

2.根据报错信息，ctrl+F键可搜索定位到冲突的jar包

4.找到jar后，右键点击Exclude，即可排除冲突jar

5.pom页面mvn----reimport即可解决问题