Implementation of the Java Network Launching Protocol (JNLP)

 NetX provides a drop-in replacement for javaws (Java Web Start). Since
 upstream NetX is dead, the IcedTea Web project is hosting a fork of the
 original code. However, as icedtea-web has evolved to complex set of tools,
 extensions and tests, it has now only a few lines of code shared with the
 original implementation.
 .
 IcedTea's NetX currently supports verification of signed jars, trusted
 certificate storing, system certificate store checking, and provides
 the services specified by the JNLP API.