expression = "import ch.qos.logback.classic.Level; (e.getMarker() != null) && (e.getMarker().contains(\"yo\"))";
ee = new ExpressionEvaluator(expression,
optionalExpressionType, parameterNames, parameterTypes,
thrownExceptions, null);
res = ee.evaluate(parameterValues);
// Print expression result.
System.out.println("Result = " + DemoBase.toString(res));
System.out.println("Type = " + res.getClass().getName());
loop(ee, parameterValues);