Shortcuts on Collections to create Streams

[Zs.]

Thanks, so I'm late by about 4 months for that method.
I've found the tickets about this for future reference:
https://bugs.openjdk.java.net/browse/JDK-8180352
and the pull request - https://github.com/openjdk/jdk/pull/1026
Now, I only miss the 3 other what I've mentioned :)

Best regards,
 Zsombor

On Wed, Mar 3, 2021 at 10:53 PM Thiago Henrique Hupner <thihup at gmail.com>
wrote:

> They have added the Stream#toList in JDK 16:
> https://download.java.net/java/early_access/jdk16/docs/api/java.base/java/util/stream/Stream.html#toList()
>
>
> Em qua., 3 de mar. de 2021 às 18:45, Zs. <gzsombor at gmail.com> escreveu:
>
>> Hi,
>>
>>  As Collection already has a default implementation for 'forEach', I'm
>> wondering why there is no similar shortcuts for a couple of repeating
>> patterns around the Collection <--> Stream transitions?
>> For example, if you could write:
>>  collection.map(...) instead of collection.stream().map(...);
>>  collection.filter(...) instead of collection.stream().filter(...);
>> Or for the other direction:
>>  stream.toList() instead of stream.collect(Collectors.toList())
>>  stream.toSet() instead of stream.collect(Collectors.toSet())
>>
>> They are heavily used even in OpenJDK's source code:
>>
>>    -
>>
>> https://github.com/search?q=stream%5C%28%5C%29.filter%28+repo%3Aopenjdk%2Fjdk+language%3AJava&type=Code&ref=advsearch&l=Java&l=
>>    -  380 results, unfortunately with false matches from javax.xml.stream.
>>       StreamFilter
>>    -
>>
>> https://github.com/search?q=stream%5C%28%5C%29.map%5C%28%5C%29+repo%3Aopenjdk%2Fjdk&type=Code
>>       - 559 results, unfortunately with false matches from comments or
>>       streams().mapToInt or not related code
>>
>>
>>    -
>>
>> https://github.com/openjdk/jdk/search?q=collect%28Collectors.toList%28%29%29
>>    -  367 results
>>    -
>>
>> https://github.com/openjdk/jdk/search?q=collect%28Collectors.toSet%28%29%29
>>    -  117 results
>>
>> Any particular reason, why adding these - 4 or more - default method to a
>> collection deemed unnecessary or harmful? Unfortunately I haven't been
>> able
>> to find the answers for this question using internet searches.
>>
>> Thanks,
>>  Zsombor
>>
>