What was the reason again Groovy does not add getSize() here... ?-)
Cheers,
mg
On 01/08/2020 04:06, Paul King wrote:
What Daniel said is correct. Also if there was an accessible getSize()
method, you could use just ".size".
Cheers, Paul.
On Sat, Aug 1, 2020 at 11:19 AM Daniel Sun <sun...@apache.org
<mailto:sun...@apache.org>> wrote:
The parentheses of methods without parameters could not be ommitted.
`[1, 2, 3].size` is accessing the private field `size` of
`ArrayList`, so illegal reflective access warning will be thrown.
Cheers,
Daniel Sun
On 2020/08/01 00:49:54, paul <pl.grue...@gmail.com
<mailto:pl.grue...@gmail.com>> wrote:
> Hi all,
>
> (on latest groovy 3.0.5 and OpenJDK 14) omitting the empty
parentheses to the .size() call works, but throws an illegal
reflective access warning:
>
> ```
> groovy:000> [1,2,3].size
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by
org.codehaus.groovy.reflection.ReflectionUtils
(file:/home/paul/.sdkman/candidates/groovy/3.0.5/lib/groovy-3.0.5.jar)
to field java.util.ArrayList.size
> WARNING: Please consider reporting this to the maintainers of
org.codehaus.groovy.reflection.ReflectionUtils
> WARNING: Use --illegal-access=warn to enable warnings of further
illegal reflective access operations
> WARNING: All illegal access operations will be denied in a
future release
> ===> 3
> ```
>
> Curiously, the size() method seems to be the only parameter-less
method where I can
> omit the empty parentheses – all others throw a
MissingPropertyException (as expected).
>
> What is the desired behaviour, and why is it even working
(albeit with warnings) with .size ?
>
>
> best
> paul
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