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serverplugins/sun/appsrv81/src/org/netbeans/modules/j2ee/sun/ide/Installer.java is registered in manifest as a module install class but there is no real code to be executed. It is waste of time to load it on startup.
ideHomeLoaction can be moved to PluginProperies where it is really used. Facade probably does not need to be here too.
It looks like there is a lot that happens in the installer... closing as invalid