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https://issues.apache.org/jira/browse/GROOVY-11480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles resolved GROOVY-11480.
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Fix Version/s: 5.0.0-alpha-11
Resolution: Fixed
https://github.com/apache/groovy/commit/59b02b54d8d8458b4be6bc2f1f16c641ae077def
> Cast exception when using qualified this in lambda
> --------------------------------------------------
>
> Key: GROOVY-11480
> URL: https://issues.apache.org/jira/browse/GROOVY-11480
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Reporter: Eric Milles
> Assignee: Eric Milles
> Priority: Major
> Fix For: 5.0.0-alpha-11
>
>
> Consider the following:
> {code:groovy}
> @groovy.transform.CompileStatic
> class Test1 {
> class Test2 {
> def m() {
> Optional.empty().orElseGet(() -> Test1.this.n)
> }
> }
> private n = 123
> }
> assert new Test1.Test2(new Test1()).m() == 123
> {code}
> The expression "Test1.this.n" is not detected as an instance member access.
> Thus the thisObject reference for the lambda class is set to {{Class<Test2>}}
> and this results in a cast exception at runtime.
> {code}
> java.lang.ClassCastException: class java.lang.Class cannot be cast to class
> Test1$Test2 (java.lang.Class is in module java.base of loader 'bootstrap';
> Test1$Test2 is in unnamed module of loader
> groovy.lang.GroovyClassLoader$InnerLoader @7ec68821)
> at Test1$Test2$_m_lambda1.doCall(TestScript85.groovy:5)
> at java.base/java.util.Optional.orElseGet(Optional.java:364)
> at Test1$Test2.m(TestScript85.groovy:5)
> {code}
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