Hi, > http://java.sun.com/j2se/1.4.2/docs/guide/jar/jar.html#Service%20Provider > > Surprisingly, it seems like javax.imageio.spi.ServiceRegistry is the > only public JDK class that implements this lookup method.
java.security, javax.sound, javax.crypto, javax.naming, and javax.print use this mechanism as well. In JDK 1.6, additionally java.sql (JDBC 3.0), javax.script, and javax.tools. Thomas
