Exception thrown by the splash screen manager in the very first usage

[wladimirleite]

Running IPED in new machines, I saw the following exception:

java.lang.IllegalStateException: no splash screen available
        at java.desktop/java.awt.SplashScreen.checkVisible(Unknown Source)
        at java.desktop/java.awt.SplashScreen.update(Unknown Source)
        at iped.app.ui.splash.SplashScreenManager$1.run(SplashScreenManager.java:154)

When IPED is executed for the first time, LibreOffice is unpacked, and that opens a dialog, causing splash screen to be closed (this is the expected behavior, closing the splash screen when any window is opened).
This exception is harmless, but as it shown in the console, it is better to avoid it.