java JDK some of the ways in which non- native implementation ?

such as the Object finalize method , where the compiler or the JVM to achieve it ?
How can I see the path his specific implementation code ? ? ?
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Object 's finalize originally empty

subclasses need to override it
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protected void finalize () throws Throwable {}

Object in the full realization that such an empty method . . . Nothing really fantastic stuff in it it






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Object inside finalize method is just a signature , there is no realization of the need to implement a subclass
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jdk you download the source code with eclipse import ; to him is how you will be able to achieve the java source code is open source, you are able to download the source code to see .
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Java not have direct access to the underlying operating system ( such as system hardware, etc. ) , for Java to use Java native methods to expand the functionality of the program , such as native method can be likened to a Java program with C program interface.
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This is the Object finalize method source code:
protected void finalize () throws Throwable {}
empty, in which it achieved ? ? ?
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rewrite general is super.finalize ();
This implementation where ? ? ?
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native methods are using C / C + + inside the virtual machine to achieve , want to see source code ? Possible? If all you see oracle source , and he was due to go home.