[jira] [Created] (GROOVY-8065) Map created as org.springframework.http.HttpHeaders is empty in 2.4.8, works fine in 2.4.7

["Andy Wilkinson (JIRA)" <ji...@apache.org>]

Andy Wilkinson created GROOVY-8065:
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             Summary: Map created as org.springframework.http.HttpHeaders is empty in 2.4.8, works fine in 2.4.7
                 Key: GROOVY-8065
                 URL: https://issues.apache.org/jira/browse/GROOVY-8065
             Project: Groovy
          Issue Type: Bug
    Affects Versions: 2.4.8
         Environment: Java 1.8.0_102
OS X 10.10.5
            Reporter: Andy Wilkinson


There appears to be a regression in Groovy 2.4.8 that causes it to silently create an empty map when it's asked to create it as an instance of Spring Framework's {{HttpHeaders}}.

Here's a minimal reproduction:

{noformat}
@Grab("org.springframework:spring-web:4.3.5.RELEASE")
import org.springframework.http.HttpHeaders

def headers = ['Content-Type'       : 'application.json',
               'Content-Disposition': 'test.zip'] as HttpHeaders

println headers
{noformat}

It works as expected with 2.4.7:

{noformat}
$ sdk use groovy 2.4.7 && groovy asHttpHeaders.groovy

Using groovy version 2.4.7 in this shell.
[Content-Type:[application.json], Content-Disposition:[test.zip]]
{noformat}

With 2.4.8 the map is empty:

{noformat}
$ sdk use groovy 2.4.8 && groovy asHttpHeaders.groovy

Using groovy version 2.4.8 in this shell.
[:]
{noformat}



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