Access map value in EL using a variable as key

Question

I have a Map in EL as ${map} and I am trying to get the value of it using a key which is by itself also an EL variable ${key} with the

Answer 1

I have faced this issue before. This typically happens when the key is not a String. The fix is to cast the key to a String before using the key to get a value from the map

Something like this:

${someKeyThatIsNotString}

Hope that helps