ClassCastException at runtime in with closure #1412
Description
I have an inconsistent behaviour with code like this.
package testcce;
public class TestCce {
public static void main(String[] args) {
final Foo f = new Foo();
f.foobar();
f.getBar().setBar("aaa");
}
}package testcce
import groovy.beans.Bindable
import groovy.transform.CompileStatic
@CompileStatic
class Bar {
@Bindable
String bar
String other
}package testcce
import groovy.beans.Bindable
import groovy.transform.CompileStatic
@CompileStatic
class Foo {
Bar bar
@Bindable
String foo
void foobar() {
bar = new Bar()
bar.with {
addPropertyChangeListener('bar') {
other = 'something'
println 'ok'
}
}
println 'end'
}
}If I run this from Eclipse (using Greclipse 4.8.0.v202210232216-e2206) I get the following ClassCastException:
Exception in thread "main" java.lang.ClassCastException: class testcce.Foo cannot be cast to class testcce.Bar (testcce.Foo and testcce.Bar are in unnamed module of loader 'app')
at testcce.Foo$_foobar_closure1$_closure2.doCall(Foo.groovy:14)
If I compile and run this with Gradle/groovyc (with Groovy 2.5.19), all works fine.
What is really strange is that this is just a test case I could extract from my real project. With my real project I see the exact same exception even if I compile it with Gradle and run the application under Tomcat in the test and production environments.
A workaround is to add @CompileDynamic to Foo.foobar().