Summary
-------

`--add-exports` in javac currently implies readability. This is not intended and will be fixed so that `--add-reads` will be needed to inject readability in some cases.

Problem
-------

Consider compilation of two modules:

````
ma/module-info.java
    module ma {}

ma/a/A.java
    package a;
    public class A {}
````

````
mb/module-info.java
    module mb {}

mb/i/I.java
    package i;
    public class I { a.A a; }
````

Currently, when `--add-exports ma/a=mb` is passed to `javac`, `javac` will successfully compile the modules, even though module `mb` does not read module `ma`. This is not intended; the compilation should fail unless either `-add-reads mb=ma` is passed to `javac`, or a `requires ma;` directive is added to `mb/module-info.java`.

Solution
--------

`--add-exports` will be fixed to not imply readability.

Specification
-------------

`--add-exports` will inject `exports` directives to the source module, but will not change readability.