Packages
java.io
java.lang
java.lang.ref
java.lang.reflect
java.math
java.net
java.security
java.security.acl
java.security.cert
java.security.interfaces
java.security.spec
java.text
java.util
java.util.jar
java.util.zip
javax.microedition.io
javax.microedition.pki
javax.security.auth.x500