Here they are:
   <externallink id="http://java.sun.com/javase/6/docs/guide/jni/spec/functions.html#wp18654">JNI Documentation</externallink>).
        <externallink id="http://java.sun.com/javase/6/docs/guide/jni/spec/types.html#wp16432">JNI
      See <externallink id="http://java.sun.com/javase/6/docs/guide/jni/spec/functions.html">JNI
path to a <externallink id="http://java.sun.com/javase/6/docs/guide/jar/jar.html">
id="http://java.sun.com/javase/6/docs/guide/jar/jar.html">JAR file</externallink> to be
<externallink id="http://java.sun.com/javase/6/docs/guide/jni/spec/functions.html#wp23720">JNI Specification</externallink>.

Instead of
javase/6/docs/guide

these links should contain
javase/6/technotes/docs/guides