[GROOVY-2976] ClassCastException when printing a mixed type int/long range

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.6, 1.6-beta-1
• Fix Version/s: 1.5.7, 1.6-beta-2
• Assignee: Paul King
• Reporter: Christian Semrau
• Created: 26/Jul/08 07:23
• Updated: 13/Nov/08 06:59
• Resolved: 06/Sep/08 08:58

Description

A mixed type int/long range throws a ClassCastException when printed.

script.groovy

def start  = Integer.MAX_VALUE
def finish = Integer.MAX_VALUE + 2L
def r = (start..finish)
println r.getClass()  // class groovy.lang.ObjectRange
println r.getFrom().getClass()  // class java.lang.Integer
println r.getTo().getClass()  // class java.lang.Long

println r.toString()  // 2147483647..2147483649
println r  //java.lang.ClassCastException: java.lang.Integer

println ('Range is ' + r.toString())  // Range is 2147483647..2147483649
println ('Range is ' + r)  //java.lang.ClassCastException: java.lang.Integer

BTW, I assume that converting the range to a list for printing happens on purpose:

script.groovy

def start  = 0
def finish = 2
def r = (start..finish)
println r.toString()  // 0..2
println r  // [0, 1, 2]

Seems a bit strange to me, but well...