static {
/* ensure that the necessary native libraries are loaded */
NativeLibLoader.loadLibraries();
if (!GraphicsEnvironment.isHeadless()) {
initIDs();
}
final Toolkit tk = Toolkit.getDefaultToolkit();
if (tk instanceof SunToolkit) {
cachedNumberOfButtons = ((SunToolkit) tk).getNumberOfButtons();
} else {
// It's expected that some toolkits (Headless,
// whatever besides SunToolkit) could also operate.
cachedNumberOfButtons = 3;
}
}
