javax.smartcardio in Java 9, 10, 11, 12… etc
问题 What happened to the javax.smartcardio library from Java 9 onwards? Is there an alternative or some way to obtain it in JAR? 回答1: After the java becomes "Modular Development", javax.smartcardio has also been modularized. If you want to use the package after java 9 , create module-info.java . Please see the image. Or you can just degrade the compiler version to JDK 1.8 : https://dzone.com/articles/java-9-modularity-jigsaw 回答2: After some hours searching on the web, thanks to the answer above,