SpringBoot 4.x 集成发送邮件服务，报错异常常见问题解决

报错信息：异常1Caused by: java.lang.ClassNotFoundException: com.sun.mail.util.FolderClosedIOException at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[na:na] ... 53 common frames omitted异常2Caused by: java.lang.NoClassDefFoundError: Could not initialize class jakarta.mail.internet.ParameterListCaused by: java.lang.ExceptionInInitializerError: Exception java