Merge "Update the JNI spec link, and remove a dead link."

code (written in C/C++).  It's vendor-neutral, has support for loading code from

dynamic shared libraries, and while cumbersome at times is reasonably efficient.</p>

<p>You really should read through the

<a href="http://java.sun.com/javase/6/docs/technotes/guides/jni/spec/jniTOC.html">JNI spec for J2SE 6</a>

<p>If you're not already familiar with it, read through the

<a href="http://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/jniTOC.html">Java Native Interface Specification</a>

to get a sense for how JNI works and what features are available.  Some

aspects of the interface aren't immediately obvious on

first reading, so you may find the next few sections handy.

There's a more detailed <a href="http://java.sun.com/docs/books/jni/html/jniTOC.html">JNI Programmer's Guide and Specification</a>.</p>

first reading, so you may find the next few sections handy.</p>

<a name="JavaVM_and_JNIEnv" id="JavaVM_and_JNIEnv"></a>