[GROOVY-10819] Meta class registry corruption leads to stack overflow

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 4.0.7
• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 09/Nov/22 18:22
• Updated: 10/Feb/23 21:40
• Resolved: 09/Nov/22 20:05

Description

Consider the following:

@groovy.transform.CompileStatic
void test() {
  String.getMetaClass().methodName = {
    // ...
  }
  "foo".methodName()
}

After executing this, the ClassInfo registry contains an entry java.lang.String: {theClass: java.lang.Class, ...}.

As additional Groovy code is executed, PojoMetaClassSite entries can fail cache check and create a new CallSite and it too fails cache check and so on until stack overflow.

Issue Links

• relates to: GROOVY-10820 SC: static choice of Class vs Object extension for Type dot name