Despite "In keeping with the design of...": Why not go Groovy here and supply this as a property ?
E.g.:

String[].emptyArray

?

(Would imho also expresses more that the resulting object is shared...)

Cheers,
mg



Am 28.11.2018 um 16:42 schrieb Milles, Eric (TR Tech, Content & Ops):

In keeping with the design of "Collections.emptyList()", "Collections.emptySet()", etc.  What about a DGSM on java.util.Arrays?  Something like "Arrays.emptyArray()" which would accept generics or coercion like the Collections methods.


String[] empty = Arrays.emptyArray()

def empty = Arrays.<String[]>emptyArray()


------------------------------------------------------------------------
*From:* Milles, Eric (TR Tech, Content & Ops)
*Sent:* Wednesday, November 28, 2018 9:38:29 AM
*To:* dev@groovy.apache.org
*Subject:* Re: About adding `emptyArray` DGSM to arrays

How would you return an empty multi-dimensional array?  Your original proposal would cover that, correct?  String[][].emptyArray()


Under your new proposal, String.emptryArray() -> String[], is this it String[].emptyArray() -> String[][]?


I do prefer "String.emptryArray()" at first glance.  One-dimensional will be the most common use case by far.



------------------------------------------------------------------------
*From:* Daniel.Sun <sun...@apache.org>
*Sent:* Wednesday, November 28, 2018 6:28 AM
*To:* d...@groovy.incubator.apache.org
*Subject:* Re: About adding `emptyArray` DGSM to arrays
`String.emptyArray()` may be better

Cheers,
Daniel.Sun




-----
Daniel Sun
Apache Groovy committer
Blog: https://urldefense.proofpoint.com/v2/url?u=http-3A__blog.sunlan.me&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=tPJuIuL_GkTEazjQW7vvl7mNWVGXn3yJD5LGBHYYHww&m=7qbzGMIqJYoHbJpNbMib04Yqa0MBz3SmvB_HRFlzoVU&s=svUDTur2JydWqrY_bie1WA-6JNbPc5xortZfJ8mXwFw&e=
Twitter: @daniel_sun

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