What is the reason for java.lang.IllegalArgumentException: No enum const class even though iterating through values() works just fine?

Question

This question is basically an extension of my previous question . I asked the previous question to be sure that the Enum constants are populated when the class loads . Here\

Answer 1

Instead of defining: COLUMN_HEADINGS("columnHeadings")

Try defining it as: COLUMNHEADINGS("columnHeadings")

Then when you call getByName(String name) method, call it with the upper-cased String like this: getByName(myStringVariable.toUpperCase())

I had the same problem as you, and this worked for me.