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From "Christopher Smith (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GROOVY-8756) Use standard toString behavior for Maps
Date Mon, 20 Aug 2018 05:56:00 GMT
Christopher Smith created GROOVY-8756:
-----------------------------------------

             Summary: Use standard toString behavior for Maps
                 Key: GROOVY-8756
                 URL: https://issues.apache.org/jira/browse/GROOVY-8756
             Project: Groovy
          Issue Type: Wish
            Reporter: Christopher Smith


Groovy overrides {{Map#toString()}} to produce a very slightly tweaked version of the standard
output that comes at the cost of direct incompatibility with the API contracts of {{AbstractMap}}.
While this is an odd glitch in most cases, the fact that even an explicit attempt to call
{{map.toString()}} produces different behavior introduces compatibility problems with classes
written in other languages; as a common example, using Spock to test Java classes that include
maps in their {{toString()}} becomes... challenging.

As Groovy already has the explicit {{toMapString()}} available, there is no means to opt out
of contract-breaking changes, and (as described in GROOVY-5954) the output differs based on
static or dynamic compilation, I request that in 3.0 {{Map#toString()}} revert to the JDK-based
behavior, retaining {{toMapString()}} for when the Groovy style is desired.



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