[GROOVY-10109] IllegalAccessError with package-access base class

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.8, 2.5.19, 4.0.6
• Fix Version/s: 3.0.14, 2.5.20, 4.0.7
• Component/s: Compiler
• Assignee: Eric Milles
• Reporter: Christopher Smith
• Created: 25/May/21 22:21
• Updated: 30/Apr/23 14:27
• Resolved: 24/Oct/22 20:58

Description

It seems that the Groovy compiler is running afoul of an interaction glitch similar to that which appeared around the introduction of JDK 9: 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(), which is the "done with this section" method of the DSL. Using it compiles fine but results in

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')

Issue Links

• is related to: GROOVY-10120 STC: Guava Multimap#asMap bridge method
• relates to: GROOVY-10429 StringBuilder misses setLength method in Java17
• relates to: GROOVY-10594 Unable to Call StringBuilder.substring() method (JDK17, Groovy 3)
• relates to: GROOVY-11035 Inferred type is Object when having a complex inheritance chain of interfaces