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https://issues.apache.org/jira/browse/GROOVY-8839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Milles updated GROOVY-8839:
--------------------------------
Description:
This seems related to GROOVY-8342 (and possibly GROOVY-8638 and GROOVY-7985).
When using an array in a generics parameter, I get static compilation errors
for return of a map and also for assignment of return value to a variable.
{code:java}
package r;
public class ResultHandle {}
{code}
{code:groovy}
package p
import groovy.transform.CompileStatic
import r.ResultHandle
@CompileStatic
class Issue {
protected Map<String, ResultHandle[]> getResultsByType() {
Map<String, ResultHandle[]> resultsByType = [:]
// populate resultsByType
return resultsByType
}
}
{code}
When I build using Ant, I get the following error:
{code}
Buildfile: ...\Gr8\build.xml
-init:
-compile:
[mkdir] Created dir: ...\Gr8\ant\JavaClasses
[compile] Compiling 2 source files to ...\Gr8\ant\JavaClasses
[compile] org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup failed:
[compile] ...\Gr8\src\main\bugs\Groovy1234.groovy: 12: [Static type checking]
- Incompatible generic argument types. Cannot assign java.util.LinkedHashMap
<java.lang.String, [Lr.ResultHandle;> to: java.util.Map <String, ResultHandle[]>
[compile] @ line 12, column 12.
[compile] return resultsByType
[compile] ^
[compile] 1 error
BUILD FAILED
{code}
Additionally, I would get an error if I assigned the result of the method to a
typed variable, like this: {{Map<String, ResultHandle[]> resultsByType =
getResultsByType()}}
was:
This seems related to GROOVY-8342 (and possibly GROOVY-8638 and GROOVY-7985).
When using an array in a generics parameter, I get static compilation errors
for return of a map and also for assignment of return value to a variable.
{code:java}
package r;
public class ResultHandle {}
{code}
{code:groovy}
package p
import groovy.transform.CompileStatic
import r.ResultHandle
@CompileStatic
class Issue {
protected Map<String, ResultHandle[]> getResultsByType() {
Map<String, ResultHandle[]> resultsByType = [:]
// populate resultsByType
return resultsByType
}
}
{code}
When I build using Ant, I get the following error:
{code}
Buildfile: ...\Gr8\build.xml
-init:
-compile:
[mkdir] Created dir: ...\Gr8\ant\JavaClasses
[compile] Compiling 2 source files to ...\Gr8\ant\JavaClasses
[compile] org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup failed:
[compile] ...\Gr8\src\main\bugs\Groovy1234.groovy: 12: [Static type checking]
- Incompatible generic argument types. Cannot assign java.util.LinkedHashMap
<java.lang.String, [Lr.ResultHandle;> to: java.util.Map <String, ResultHandle[]>
[compile] @ line 12, column 12.
[compile] return resultsByType
[compile] ^
[compile] 1 error
BUILD FAILED
{code}
Additionally, I would get an error if I assigned the result of the method to a
typed variable, like this: {{Map<String, ResultHandle[]> resultsByType =
issue.getResultsByType()}}
> Static compilation and array type parameter causing compile error
> -----------------------------------------------------------------
>
> Key: GROOVY-8839
> URL: https://issues.apache.org/jira/browse/GROOVY-8839
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.15
> Reporter: Eric Milles
> Priority: Major
>
> This seems related to GROOVY-8342 (and possibly GROOVY-8638 and GROOVY-7985).
> When using an array in a generics parameter, I get static compilation errors
> for return of a map and also for assignment of return value to a variable.
> {code:java}
> package r;
> public class ResultHandle {}
> {code}
> {code:groovy}
> package p
> import groovy.transform.CompileStatic
> import r.ResultHandle
> @CompileStatic
> class Issue {
> protected Map<String, ResultHandle[]> getResultsByType() {
> Map<String, ResultHandle[]> resultsByType = [:]
> // populate resultsByType
> return resultsByType
> }
> }
> {code}
> When I build using Ant, I get the following error:
> {code}
> Buildfile: ...\Gr8\build.xml
> -init:
> -compile:
> [mkdir] Created dir: ...\Gr8\ant\JavaClasses
> [compile] Compiling 2 source files to ...\Gr8\ant\JavaClasses
> [compile] org.codehaus.groovy.control.MultipleCompilationErrorsException:
> startup failed:
> [compile] ...\Gr8\src\main\bugs\Groovy1234.groovy: 12: [Static type
> checking] - Incompatible generic argument types. Cannot assign
> java.util.LinkedHashMap <java.lang.String, [Lr.ResultHandle;> to:
> java.util.Map <String, ResultHandle[]>
> [compile] @ line 12, column 12.
> [compile] return resultsByType
> [compile] ^
> [compile] 1 error
> BUILD FAILED
> {code}
> Additionally, I would get an error if I assigned the result of the method to
> a typed variable, like this: {{Map<String, ResultHandle[]> resultsByType =
> getResultsByType()}}
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