Cleydson José de Figueiredo Júnior created GROOVY-8652:
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Summary: Putting key on generic Map fails when using CompileStatic
Key: GROOVY-8652
URL: https://issues.apache.org/jira/browse/GROOVY-8652
Project: Groovy
Issue Type: Bug
Components: Static compilation
Affects Versions: 2.5.0, 2.4.15, 3.0.0-alpha-2
Environment: Elementary OS Freya 0.3.2
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
Reporter: Cleydson José de Figueiredo Júnior
I'm trying to use Groovy's short hand way to put a new key value to a
encapsulated Map. But the compilation fails with:
{code:java}
[Static type checking] - Cannot assign value of type java.lang.String to
variable of type ?
{code}
Scenario to reproduce:
{code:java}
import groovy.transform.CompileStatic
@CompileStatic
class MapHolder {
private Map<?, ?> map = [:]
Map<?, ?> getMap() {
return map
}
}
@CompileStatic
static setMapValue() {
MapHolder mapHolder = new MapHolder()
mapHolder.map.key = 'value'
}
setMapValue()
{code}
Using the method *put* works just fine.
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