[GROOVY-2331] Println behavior for collections, strings and gstrings [minor breaking change]

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6-rc-2
• Assignee: Paul King
• Reporter: Hans Dockter
• Created: 25/Nov/07 16:28
• Updated: 08/Jan/08 08:55
• Resolved: 08/Jan/08 08:55

Description

The println behavior for strings in collections is confusing. There should be no exclamation mark in line 8 of the following script. It is particularly confusing, as the behavior is different for strings and gstrings.

import org.codehaus.groovy.runtime.InvokerHelper

def g = 'g'
def string = 'groovy'
def gString = "${g}roovy"
println string // groovy
println gString // groovy
println([string]) // ["groovy"]  !!!!! This should be [groovy]
println([string].toString()) // [groovy]
System.out.println([string]) // [groovy]
println([gString]) // [groovy]

// The culprit
assert '"groovy"' == InvokerHelper.format(string, true)

Issue Links

• is related to: GROOVY-2330 GString vs String equality in collections
• is related to: GROOVY-2444 list of string output format changed between 1.5.0 and 1.5.1
• is related to: GROOVY-2458 Differences between StringBuffer.append und String +