[jira] [Comment Edited] (GROOVY-10109) IllegalAccessError with package-access base class

["Eric Milles (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-10109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620363#comment-17620363 ] 

Eric Milles edited comment on GROOVY-10109 at 10/19/22 2:45 PM:
----------------------------------------------------------------

Groovy 2.5.19 picked up this bug.  Our example using {{StringBuilder}} and {{AbstractStringBuilder}}:
{code:groovy}
@groovy.transform.CompileStatic
String test(String string) {
  new StringBuilder().with {
    int len = length()
    append(string)
    toString()
  }
}
print test('x')
{code}

"IllegalAccessError: tried to access class java.lang.AbstractStringBuilder from class Scratch$_test_closure1"

In this case, {{StringBuilder#length()}} is a synthetic, bridge method.  That is why this script started to exhibit the error in 2.5.19 -- see GROOVY-8638 and GROOVY-10120.


was (Author: emilles):
Groovy 2.5.19 picked up this bug.  Our example using {{StringBuilder}} and {{AbstractStringBuilder}}:
{code:groovy}
@groovy.transform.CompileStatic
String test(String string) {
  new StringBuilder().with {
    int len = length()
    append(string)
    toString()
  }
}
print test('x')
{code}

"IllegalAccessError: tried to access class java.lang.AbstractStringBuilder from class Scratch$_test_closure1"

> IllegalAccessError with package-access base class
> -------------------------------------------------
>
>                 Key: GROOVY-10109
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10109
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 3.0.8, 2.5.19, 4.0.6
>            Reporter: Christopher Smith
>            Assignee: Eric Milles
>            Priority: Major
>
> It seems that the Groovy compiler is running afoul of an interaction glitch [similar to that which appeared around the introduction of JDK 9|https://stackoverflow.com/q/36100552/1189885]: when a public class extends a package-access base class that declares public methods, the static compiler permits calling {{Derived#inheritedPublicMethod()}}, but an {{IllegalAccessError}} is produced at runtime.
> Specifically, I'm trying to use the (abandoned) Overpasser library, and I'm tripping on [{{OverpassFilterQuery#end()}}|https://github.com/zsoltk/overpasser/blob/master/library/src/main/java/hu/supercluster/overpasser/library/query/OverpassFilterQuery.java], which is the "done with this section" method of the DSL. Using it compiles fine but results in
> {code}
> java.lang.IllegalAccessError: failed to access class hu.supercluster.overpasser.library.query.AbstractOverpassSubQuery from class com.example.ThingDoer$_run_closure6 (hu.supercluster.overpasser.library.query.AbstractOverpassSubQuery and com.example.ThingDoer$_run_closure6 are in unnamed module of loader 'app')
> {code}



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