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In the good old times I made code like this: dim s as Integer = len("test") I know that I should do constants and what not. But sometimes I don’t want to. How do I do this in API2? A "test".length doesn’t work. Do I have to use a constant or property in API2? More on forum.xojo.com

Java Strings don't work like that. They don't have a char '\0' in their last index to denote the end. Also unless you are doing this just to train your java skills all of this is unnecessary complicated. You can just call length() on your Strings to get their length. More on stackoverflow.com

This java error occurs when you are trying to do a String operation (in this case, checking the length) while the value is not set (is null). More on reddit.com