Since Java classes can implement multiple interfaces and each interface can define a default method with the same method signature, the inherited methods can conflict with each other. Consider the example below: ? public interface InterfaceA { default void defaultMethod(){.Dec 07, 2020 · Keep your interface code in a low number of easily identified C++ and Java source locations to facilitate future refactors. Consider using a JNI auto-generation library as appropriate. JavaVM and JNIEnv. JNI defines two key data structures, "JavaVM" and "JNIEnv". Both of these are essentially pointers to pointers to function tables.