[jira] [Created] (GROOVY-9288) Compilation error when accessing a protected super class field from inside a closure

["John Bellassai (Jira)" <ji...@apache.org>]

John Bellassai created GROOVY-9288:
--------------------------------------

             Summary: Compilation error when accessing a protected super class field from inside a closure
                 Key: GROOVY-9288
                 URL: https://issues.apache.org/jira/browse/GROOVY-9288
             Project: Groovy
          Issue Type: Bug
          Components: Static compilation
    Affects Versions: 2.5.8, 2.5.7
            Reporter: John Bellassai


The following code works fine in 2.5.6 but breaks in 2.5.7 and 2.5.8:
{code:java}
GroovyShell shell = new GroovyShell()
shell.evaluate('''
    package a
    
    import groovy.transform.CompileStatic
    
    @CompileStatic
    abstract class Abstract_Class {
        protected String protectedField = 'field'
        
        abstract String doThing()
    }
    assert true''')

shell.evaluate('''
    package b
    
    import a.Abstract_Class
    import groovy.transform.CompileStatic
    
    @CompileStatic
    class ConcreteClass extends Abstract_Class {
       
        @Override
        String doThing() {
            'something'.with {
                return protectedField
            }
        }
    }
    assert true''')

shell.evaluate("assert new b.ConcreteClass().doThing() == 'field'")
{code}
{noformat}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Script2.groovy: 13: Access to a.Abstract_Class#protectedField is forbidden @ line 13, column 32.
                           return protectedField
                                  ^
{noformat}
If you change both classes to be in the same package, you get an error like this:
{noformat}
tried to access field a.Abstract_Class.protectedField from class a.ConcreteClass$_doThing_closure1
java.lang.IllegalAccessError: tried to access field a.Abstract_Class.protectedField from class a.ConcreteClass$_doThing_closure1
{noformat}



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