This is something I hope to address in my alternative JDK module
implementation. I feel that Jigsaw as it stands right now has too many
practical problems to be a candidate for JSR 376, and I'm hoping to
either influence Jigsaw into a different state or move to an alternative
design (like mine or another as-yet-unwritten) which fixes these flaws.
On 12/01/2015 08:42 AM, Vitaly Davidovich wrote:
Alan,
What's the reason a new java/bytecode access modifier to indicate
module-private wasn't implemented? I agree that public not being really
public is a big wart.
sent from my phone
On Dec 1, 2015 9:27 AM, "Alan Bateman" <alan.bate...@oracle.com> wrote:
On 01/12/2015 13:54, Stephen Colebourne wrote:
:
The JavaOne talks specifically mention the need for code changes for
reflection code (adding readability IIRC). And I know there will be
lots of psuedo code that says:
if (!member.isPublic) {
member = member.setAccessible(true)
}
which is also likely to have problems, because public no longer has
exactly the same meaning as today.
The J1 slides on adding read edges was in the context of migration to an
explicit module. We used the Jackson JSON data-binding API as an example as
it's a small enough example to demonstrate a library that attempts to
access or instantiate a type in the consumer module that it doesn't read.
So a migration topic and not meant to give the impression that all
libraries on the class path using core reflection would break.
"public does not guarantee accessible" will of course be a surprise at
first. In terms of compatibility then it becomes an issue when an existing
library on the class path (that doesn't know anything about modules) get a
reference to a type in a non-exported package of an explicit module. It's
the first item in the Risks and Assumptions section of JEP 261 but I think
we'll need to see how people get on mixing the class path and modules to
understand the impact. I hope in time that there will be a good migration
guide to modules and I've no doubt that this will be one of the topics that
it will need to cover.
-Alan.
--
- DML
