Should not be able to use default constructor of protected class in external package

Issue #94 resolved
Jesper Öqvist created an issue

JastAddJ 7.1.1-270-g45f31b2 Java SE 7

Using of a protected class default constructor in a class outside the containing package should not work:

// Test using protected inner class outside this package.
// It works if we extend the outer class, but we can not access
// the constructor.
// .result=COMPILE_FAIL
class Test extends p1.A {
        p1.A.X x = new p1.A.X();
package p1;
public class A {
        protected class X {

Comments (3)

  1. Jesper Öqvist reporter

    According to JLS SE7 a qualified access to a protected constructor is allowed outside the package only if it is in the context of an anonymous class instance expression, or a super constructor invocation. This complicates the access rules a bit in JastAddJ since now the rule is simply that a constructor can be accessed from an type if the enclosing type of the access has access to the host type of the constructor and the constructor is protected or public.

  2. Jesper Öqvist reporter

    Since the constructor lookup relies on the ConstructorDecl.accessibleFrom(TypeDecl) attribute to find applicable constructors even for anonymous class instance expressions that attribute should not be changed - that would mean anonymous class instance expressions stop working according to the spec. Instead we need to check each constructor access separately from the lookupConstructor attribute.

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