Describe the bug
If I invoke the substring() function with a length that is greater than the given string then the evaluation fails and reports a Java StringIndexOutOfBoundsException.
To Reproduce
Steps to reproduce the behavior:
Evaluate the expression substring("abc", 1, 4)
Verify that the evaluation fails with the message
failed to evaluate expression 'substring("abc", 1, 4)' :
java.lang.StringIndexOutOfBoundsException: begin 0, end 4, length 3
Expected behavior
The function invocation should return the whole string if the length is greater than the string.
substring("abc", 1, 4) // --> "abc"
However, according to the DMN 1.5 specification, the function invocation should return null.
However, returning null is not the most (business) user-friendly behavior. It could lead to complicated expressions, for example:
if string length(message) < 10 then message else substring(message, 1, 10)
Describe the bug If I invoke the substring() function with a length that is greater than the given string then the evaluation fails and reports a Java
StringIndexOutOfBoundsException
.To Reproduce Steps to reproduce the behavior:
substring("abc", 1, 4)
Expected behavior
The function invocation should return the whole string if the length is greater than the string.
However, according to the DMN 1.5 specification, the function invocation should return
null
.However, returning
null
is not the most (business) user-friendly behavior. It could lead to complicated expressions, for example:Environment
1.17.4
8.4.0