Reusing module name token `*` in -d
Stephan Herrmann
stephan.herrmann at berlin.de
Sun Jan 22 16:21:36 UTC 2017
Thanks.
Is that the documentation that JLS mentions?
I was expecting s.t. that search engines can find.
The javac help message doesn't even speak of @SuppressWarnings,
so are we sure this is the same list?
More specifically: the warning of unresolved "to", is that covered
by "module" or "exports", or both?
Stephan
On 01/22/2017 03:50 PM, Remi Forax wrote:
> $javac -X
> -Xlint:<key>(,<key>)*
> Warnings to enable or disable, separated by comma.
> Precede a key by - to disable the specified warning.
> Supported keys are:
> all Enable all warnings
> auxiliaryclass Warn about an auxiliary class that is hidden in a source file, and is used from other files.
> cast Warn about use of unnecessary casts.
> classfile Warn about issues related to classfile contents.
> deprecation Warn about use of deprecated items.
> dep-ann Warn about items marked as deprecated in JavaDoc but not using the @Deprecated annotation.
> divzero Warn about division by constant integer 0.
> empty Warn about empty statement after if.
> exports Warn about issues regarding module exports.
> fallthrough Warn about falling through from one case of a switch statement to the next.
> finally Warn about finally clauses that do not terminate normally.
> module Warn about module system related issues.
> options Warn about issues relating to use of command line options.
> overloads Warn about issues regarding method overloads.
> overrides Warn about issues regarding method overrides.
> path Warn about invalid path elements on the command line.
> processing Warn about issues regarding annotation processing.
> rawtypes Warn about use of raw types.
> removal Warn about use of API that has been marked for removal.
> serial Warn about Serializable classes that do not provide a serial version ID.
> Also warn about access to non-public members from a serializable element.
> static Warn about accessing a static member using an instance.
> try Warn about issues relating to use of try blocks (i.e. try-with-resources).
> unchecked Warn about unchecked operations.
> varargs Warn about potentially unsafe vararg methods
> none Disable all warnings
>
> Rémi
>
> ----- Mail original -----
>> De: "Stephan Herrmann" <stephan.herrmann at berlin.de>
>> À: jigsaw-dev at openjdk.java.net
>> Envoyé: Dimanche 22 Janvier 2017 15:25:57
>> Objet: Re: Reusing module name token `*` in -d
>
>> On 01/22/2017 02:50 PM, Remi Forax wrote:
>>> interesting !
>>>
>>> It's now a warning that you can exclude with @SuppressWarnings("module"):
>>> src/main/java/foo/module-info.java:2: warning: [module] module not found: baz
>>> exports foo to baz;
>>> ^
>>
>> JLS 9.6.4.5 @SuppressWarnings:
>> "Compiler vendors should document the warning names they support in conjunction
>> with this annotation type. Vendors are encouraged to cooperate to ensure that
>> the same names work across multiple compilers."
>>
>> looking forward to seeing this happen,
>> Stephan
>>
>>> Rémi
>>>
>>> ----- Mail original -----
>>>> De: "Robert Scholte" <rfscholte at apache.org>
>>>> À: jigsaw-dev at openjdk.java.net
>>>> Envoyé: Samedi 21 Janvier 2017 20:12:37
>>>> Objet: Re: Reusing module name token `*` in -d
>>>
>>>> On Sat, 21 Jan 2017 19:35:28 +0100, Stephan Herrmann
>>>> <stephan.herrmann at berlin.de> wrote:
>>>>
>>>>> On 01/21/2017 06:52 PM, forax at univ-mlv.fr wrote:
>>>>>> Robert,
>>>>>> How do you compile these 2 modules with Maven ?
>>>>>>
>>>>>> module foo {
>>>>>> exports foo to bar;
>>>>>> }
>>>>>>
>>>>>> module bar {
>>>>>> requires foo;
>>>>>> }
>>>>>>
>>>>>> when compiling 'foo' javac needs to see if 'bar' exists and when
>>>>>> compiling 'bar', javac will ask to see 'foo'.
>>>>>
>>>>> I don't think so:
>>>>>
>>>>> "It is permitted for the to clause of an exports or opens statement to
>>>>> specify a module which is not observable."
>>>>> [lang-vm.html 1.1.2 - 2017/1/9]
>>>>>
>>>>> I assume this will eventually (when??) become part of JLS, right?
>>>>>
>>>>> cheers,
>>>>> Stephan
>>>>
>>>>
>>>> Confirmed. I've added an integration-test to the maven-compiler-plugin,
>>>> works as expected. No need for cross reference dependencies.
>>>>
>>>> thanks,
>>>> Robert
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