[
https://issues.apache.org/jira/browse/GROOVY-11929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tommi Ratamaa updated GROOVY-11929:
-----------------------------------
Description:
MissingMethodException runtime exception from dynamic invocation (ivy) when
calling super method with parameter type bound by interface and base class
generic type.
Simplified code example (in real case classes and interfaces are not inner but
that does not matter) that used to work with Groovy 3, Groovy 4 and also works
as Java code with JDK21 or with @CompileStatic, but fails to bind to super
method on runtime when compiled with Groovy 5 using dynamic invocation:
{code:java}
class GroovyBug {
static interface Dao<T> {
T save(T entity)
}
static abstract class AbstractDao<T> implements Dao<T> {
T save(T entity) {
return entity
}
}
static interface EntityDao extends Dao<Entity> {
@Override
Entity save(Entity entity)
}
static class EntityDaoImpl extends AbstractDao<Entity> implements EntityDao
{
@Override
//@CompileStatic // would fix it
Entity save(Entity entity) {
//return super.save((Object) entity) // would fix it
return super.save(entity)
}
}
static class Entity {
long id
}
static void main(String[] args) {
new EntityDaoImpl().save(new Entity())
/* Exception from save ^ call:
groovy.lang.MissingMethodException: No signature of method: save
for class: GroovyBug$EntityDaoImpl is applicable for argument types:
(GroovyBug$Entity) values: [GroovyBug$Entity@1c05a54d]
Possible solutions: save(GroovyBug2$Entity),
save(java.lang.Object), save(java.lang.Object), wait(), any(), wait(long)
at GroovyBug$EntityDaoImpl.methodMissing(GroovyBug.groovy)
at GroovyBug$EntityDaoImpl.save(GroovyBug.groovy:24)
at GroovyBug.main(GroovyBug.groovy:33)
*/
}
}{code}
The generic type information provided for the implemented interface/base class
is erased and argument would need to be casted to Object (as
save(java.lang.Object) in possible solutions suggests).
Also removing the overridden declaration from interface would solve it.
was:
Simplified code example (in real case classes and interfaces are not inner but
that does not matter) that used to work with Groovy 3, Groovy 4 and also works
as Java code with JDK21 or with @CompileStatic, but fails to bind to super
method on runtime when compiled with Groovy 5 using dynamic invocation:
{code:java}
class GroovyBug {
static interface Dao<T> {
T save(T entity)
}
static abstract class AbstractDao<T> implements Dao<T> {
T save(T entity) {
return entity
}
}
static interface EntityDao extends Dao<Entity> {
@Override
Entity save(Entity entity)
}
static class EntityDaoImpl extends AbstractDao<Entity> implements EntityDao
{
@Override
//@CompileStatic // would fix it
Entity save(Entity entity) {
//return super.save((Object) entity) // would fix it
return super.save(entity)
}
}
static class Entity {
long id
}
static void main(String[] args) {
new EntityDaoImpl().save(new Entity())
/* Exception from save ^ call:
groovy.lang.MissingMethodException: No signature of method: save
for class: GroovyBug$EntityDaoImpl is applicable for argument types:
(GroovyBug$Entity) values: [GroovyBug$Entity@1c05a54d]
Possible solutions: save(GroovyBug2$Entity),
save(java.lang.Object), save(java.lang.Object), wait(), any(), wait(long)
at GroovyBug$EntityDaoImpl.methodMissing(GroovyBug.groovy)
at GroovyBug$EntityDaoImpl.save(GroovyBug.groovy:24)
at GroovyBug.main(GroovyBug.groovy:33)
*/
}
}{code}
The generic type information provided for the implemented interface/base class
is erased and argument would need to be casted to Object (as
save(java.lang.Object) in possible solutions suggests).
Also removing the overridden declaration from interface would solve it.
> Generic type information erased for super call (ivy)
> ----------------------------------------------------
>
> Key: GROOVY-11929
> URL: https://issues.apache.org/jira/browse/GROOVY-11929
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 5.0.5
> Environment: Groovy 5.0.5, groovy-eclipse-compiler 3.9.1,
> groovy-eclipse-batch 5.0.5-01, JDK 21, macOS 26
> Reporter: Tommi Ratamaa
> Priority: Major
>
> MissingMethodException runtime exception from dynamic invocation (ivy) when
> calling super method with parameter type bound by interface and base class
> generic type.
> Simplified code example (in real case classes and interfaces are not inner
> but that does not matter) that used to work with Groovy 3, Groovy 4 and also
> works as Java code with JDK21 or with @CompileStatic, but fails to bind to
> super method on runtime when compiled with Groovy 5 using dynamic invocation:
> {code:java}
> class GroovyBug {
> static interface Dao<T> {
> T save(T entity)
> }
> static abstract class AbstractDao<T> implements Dao<T> {
> T save(T entity) {
> return entity
> }
> }
> static interface EntityDao extends Dao<Entity> {
> @Override
> Entity save(Entity entity)
> }
> static class EntityDaoImpl extends AbstractDao<Entity> implements
> EntityDao {
> @Override
> //@CompileStatic // would fix it
> Entity save(Entity entity) {
> //return super.save((Object) entity) // would fix it
> return super.save(entity)
> }
> }
> static class Entity {
> long id
> }
> static void main(String[] args) {
> new EntityDaoImpl().save(new Entity())
> /* Exception from save ^ call:
> groovy.lang.MissingMethodException: No signature of method: save
> for class: GroovyBug$EntityDaoImpl is applicable for argument types:
> (GroovyBug$Entity) values: [GroovyBug$Entity@1c05a54d]
> Possible solutions: save(GroovyBug2$Entity),
> save(java.lang.Object), save(java.lang.Object), wait(), any(), wait(long)
> at GroovyBug$EntityDaoImpl.methodMissing(GroovyBug.groovy)
> at GroovyBug$EntityDaoImpl.save(GroovyBug.groovy:24)
> at GroovyBug.main(GroovyBug.groovy:33)
> */
> }
> }{code}
> The generic type information provided for the implemented interface/base
> class is erased and argument would need to be casted to Object (as
> save(java.lang.Object) in possible solutions suggests).
> Also removing the overridden declaration from interface would solve it.
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