This code

               } else if (osName.startsWith("Mac")) {
                   libPrefix = "lib";
                   libSuffix = ".jnilib";
                   libSuffixAlt = ".dylib";

should be changed to this

               } else if (osName.startsWith("Mac")) {
                   libPrefix = "lib";
                   libSuffix = ".dylib";
                   libSuffixAlt = ".jnilib";

These files are affected:

./glass/glass-mat/src/com/sun/glass/utils/NativeLibLoader.java
./media/jfxmedia/src/com/sun/media/jfxmediaimpl/NativeLibLoader.java
./rt-closed/javafx-common/src/com/sun/javafx/runtime/NativeLibLoader.java