2 min read
JJWT on Java 11+: ClassNotFoundException for DatatypeConverter
Old JJWT versions call javax.xml.bind.DatatypeConverter for Base64. On Java 11+ that class is gone — upgrade JJWT and use java.util.Base64.
#JDK
2 posts
2 min read
Manage Multiple JDK Versions on Your Computer
Switch between JDKs on macOS with java_home, shell aliases, and a PATH that actually follows JAVA_HOME.