javac8 annotation processors don't visit parameter annotations
Joseph Darcy
joe.darcy at oracle.com
Thu Mar 6 02:25:37 UTC 2014
Hello,
Oops!
Yes, the visitExecutable implementation in a scanner should traverse the
parameters of the executable, as done in the ElementScanner superclass.
Thanks for catching this Liam and sending in a patch,
-Joe
On 3/5/2014 1:49 PM, Liam Miller-Cushon wrote:
> There appears to be a javac8 bug that prevents annotation processors
> from visiting annotations on parameters. When repeated annotations
> were implemented [1][2] the annotation scanners in
> JavacProcessingEnvironment and JavacRoundEnvironment were modified and
> the following override was added:
>
> @Override
> public Set<TypeElement> visitExecutable(ExecutableElement e,
> Set<TypeElement> p) {
> // Type parameters are not considered to be enclosed by an executable
> scan(e.getTypeParameters(), p);
> return scan(e.getEnclosedElements(), p);
> }
>
> MethodSymbols don't have any enclosed elements, but they do have
> parameters (which currently aren't being visited). I think that line
> was meant to match the base implementation in ElementScanner:
>
> return scan(e.getParameters(), p);
>
>
> [1] https://bugs.openjdk.java.net/browse/JDK-7162089
> [2] http://hg.openjdk.java.net/jdk8/jdk8/langtools/rev/1908e86ee49a
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