升级JDK21出现该异常

JCRCaused by: java.util.jar.JarException: jar:file:/app//service.jar!/BOOT-INF/lib/bcprov-jdk14-138.jar!/ has unsigned entries - org/bouncycastle/LICENSE.class
 

解决方案

排除

bcprov-jdk14 依赖  可以通过maven插件去查找

        <dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><exclusions><exclusion><artifactId>bcprov-jdk14</artifactId><groupId>bouncycastle</groupId></exclusion><exclusion><artifactId>bcprov-jdk14</artifactId><groupId>org.bouncycastle</groupId></exclusion></exclusions></dependency>

添加依赖

        <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk18on --><dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk18on</artifactId><version>1.77</version></dependency><!-- https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk18on --><dependency><groupId>org.bouncycastle</groupId><artifactId>bcpkix-jdk18on</artifactId><version>1.77</version></dependency><dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk15on</artifactId><version>1.70</version></dependency>

清理maven 

install maven

OK