See this other Stack Overflow Q/A about the runtime JAR (rt.jar or classes.jar depending on the OS you are using). This JAR is basically just like any other JAR you might write for a project, except instead of being a library or application, this JAR contains the classes used within and provided by the JVM itself. Packages define the folder structure of how compiled classes are stored within the JAR (they aren’t filesystem folders), so you would have to look into the JAR itself to find the folder/package sun/java2d
. You can look at the files and the file structure of the JAR by following the instruction on how to unzip a JAR.
0
solved Java Package not in Folders