Differences between JVM implementations

Question

Where do JVM Implementations differ (except licensing)? Does every JVM implement Type Erasure for the Generic handling?

Where are the differences between:

Answer 1

JVM is like a virtual Machine that works to Load the class and Bytcode varifier, execute the code. while Applocaion Programming Interface is Collection of Packages. and Packages are collection of class. Java program execute where JVM Installed and Works.