package net.bootsfaces.expressions.decorator; public class Configuration { public static boolean myFaces = false; static { StackTraceElement[] stackTrace = new NullPointerException().getStackTrace(); for (StackTraceElement line : stackTrace) { if (line.getClassName().contains("org.apache.myfaces")) { myFaces = true; break; } if (line.getClassName().contains("com.sun.faces")) { myFaces = false; break; } } } }