Re: [faces-dev] Removal of FeatureDescriptor from the EL API

[Mark Thomas <markt@xxxxxxxxxx>]

Thanks Thomas and Christoph,

That is very helpful. That suggests that it might be possible to 
deprecate the use of FeatureDescriptor in the API in this version and 
remove it in a future (the next?) version without too much disruption.

I need to do some testing to figure out just what dependencies on 
java.desktop the API would be left with if we removed those methods. The 
results of those tests will inform the decision on whether to proceed 
with the deprecation.

Thanks again,

Mark


On 13/07/2021 19:24, Christoph Straßer wrote:
> Hi!
>
>  From a high-level-view Mojarra und MyFaces seem to be comparable in 
> this regard:
> https://github.com/eclipse-ee4j/mojarra/search?p=1&q=FeatureDescriptor 
> <https://github.com/eclipse-ee4j/mojarra/search?p=1&q=FeatureDescriptor>
> https://github.com/apache/myfaces/search?p=1&q=FeatureDescriptor 
> <https://github.com/apache/myfaces/search?p=1&q=FeatureDescriptor>
>
> Kind regards,
>
> Christoph
>
> Am Di., 13. Juli 2021 um 15:19 Uhr schrieb Thomas Andraschko 
> <tandraschko@xxxxxxxxxx <mailto:tandraschko@xxxxxxxxxx>>:
>
>     Hi Mark,
>
>     no idea.
>     In MyFaces we create FeatureDescriptor objects but cant see why or
>     why EL requires it?`
>
>     In MyFaces however we use BeanInfo and BeanDescriptor and seems
>     really used.
>
>     Am Mi., 7. Juli 2021 um 20:44 Uhr schrieb Mark Thomas
>     <markt@xxxxxxxxxx <mailto:markt@xxxxxxxxxx>>:
>
>         Hi,
>
>         The EL project has an open issue regarding JPMS dependencies:
>         https://github.com/eclipse-ee4j/el-ri/issues/47
>         <https://github.com/eclipse-ee4j/el-ri/issues/47>
>
>         The short version is that the use of various java.beans classes,
>         particularly FeatureDescriptor, creates a JPMS dependency on
>         java.desktop that it would be better to avoid.
>
>         While I am weighing up options, I wanted to get the views of the
>         Jakarta
>         Server Faces team on how viable it might be to remove the
>         java.beans
>         dependency and what Jakarta Server Faces might need to replace
>         it with.
>
>         As far as I can tell, Jakarta Server Pages - the other big use
>         of EL -
>         doesn't depend on FeatureDescriptor. However, internally EL uses
>         Introspector and that would need to re-written which would be
>         non-trivial.
>
>         Thoughts?
>
>         Mark
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