The Java 9 platform has encapsulated internal APIs to increase security of the platform and applications written in Java. Applications that you program in Java 9 will not have default access to the JDK's internal APIs, unlike with previous versions of the Java platform. Oracle has identified some internal APIs as critical; those APIs remain accessible via the jdk.unsupported JDK module.
The aforementioned critical APIs (internal to the JDK) are:
- sun.misc
- sun.misc.Unsafe
- sun.reflect.Reflection
- sun.reflect.ReflectionFactory.newConstrutorForSerialization
If you have pre-Java 9 applications that implement any sun.* or com.sun.* package, you will likely run into problems migrating your applications to Java 9. In order ...
