java.lang.object RegisterNative implementation and static block -

java.lang.object RegisterNative implementation and static block -

in object.class file in jdk 7 see next snippet

public class object { private static native void registernatives(); static { registernatives(); }

two questions:

ok actual implementation of method? method has no body. the method set static. why static block needed 1 time again right below it?

this method declaration

private static native void registernatives();

doesn't provide body. it's similar interface methods

public interface whatever { public void somemethod(); }

the method isn't abstract, implementation deferred native code. note method declaration. hasn't been invoked.

to invoke it, object declares static initializer block. executed when class loaded. object 1 of scheme classes , among first classes loaded jvm.

finding native code depends on jre implementation. where find source code java.lang native methods?

java object static