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https://issues.apache.org/jira/browse/GROOVY-8416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King reassigned GROOVY-8416:
---------------------------------
Assignee: Paul King
> Map-based constructor generated by @Immutable works only with HashMap
> ---------------------------------------------------------------------
>
> Key: GROOVY-8416
> URL: https://issues.apache.org/jira/browse/GROOVY-8416
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.13
> Reporter: Andreas Mayer
> Assignee: Paul King
> Priority: Major
>
> If you call the map-based constructor of an {{@Immutable}} class with a
> non-{{HashMap}}, it will try to set the properties via setters, which causes
> a {{ReadOnlyPropertyException}}. Somehow it works with {{HashMap}} or
> subclasses like {{LinkedHashMap}}. Why?
> {code}
> import groovy.transform.Immutable
> @Immutable
> class Point {
> int x
> int y
> }
> def coordinates = [x: 1, y: 2]
> assert coordinates instanceof LinkedHashMap
> def p1 = new Point(coordinates)
> assert p1.x == 1
> def p2 = new Point(new HashMap(coordinates))
> assert p2.x == 1
> try {
> new Point(new TreeMap(coordinates))
> } catch (e) {
> assert e instanceof ReadOnlyPropertyException
> }
> try {
> new Point(coordinates.asImmutable())
> } catch (e) {
> assert e instanceof ReadOnlyPropertyException
> }
> {code}
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