Standard Output
2023-09-06 14:05:40,953 TRACE [main] org.appng.el.ExpressionEvaluator: setting variable 'a' of type 'java.lang.Integer' to value '5'
2023-09-06 14:05:40,953 TRACE [main] org.appng.el.ExpressionEvaluator: setting variable 'b' of type 'java.lang.Integer' to value '6'
2023-09-06 14:05:40,954 DEBUG [main] org.appng.el.ExpressionEvaluator: ${map['foo'] eq 'bar'} = true [(a = 5), (b = 6), (SESSION = {foo=5, fizz=TRUE}), (map = {foo=bar})]
2023-09-06 14:05:40,955 DEBUG [main] org.appng.el.ExpressionEvaluator: ${map['foo']} = bar [(a = 5), (b = 6), (SESSION = {foo=5, fizz=TRUE}), (map = {foo=bar})]