On 30/04/2017 12:10, Stephan Herrmann wrote:
:
Java 9 could make "API leaks" either illegal or ineffective and thus
rule out
an entire category of ill-formed programs, which to-date must
unfortunately
be accepted by module-unaware compilers:
(A) Java 9 has the opportunity to say that the declaration of m1 is
illegal,
because it publicly exposes a non-accessible type, which is broken in
every regard.
FWIW, this is -Xlint:exports when using javac, e.g: public class in a
non-exported package:
src/m/p/C1.java:4: warning: [exports] class C2 in module m is not exported
public q.C2 hello() { return null; }
^
1 warning
or a non-public class in an exported package:
src/m/p/C1.java:4: warning: [exports] class C2 in module m is not
accessible to clients that require this module
public C2 hello() { return null; }
^
1 warning
-Alan
