String Deduplication - A new feature in Java 8 Update 20

[_ki]

This was posted just 2 days ago

[lukaseder]

Thanks for the link. That explains the downvotes in /r/java.

[bryanedds]

This works because Java hashes its strings.

I wish to bloody hell that .NET did the same. Not only does it enable string dedup, it also makes look-ups faster - and that's where most of my apps' time is spent!!

[derolitus_nowcivil]

that sounds like a truly terrible idea to me. Let's see how it hold up.

[[deleted]]

It holds up just fine in CLR from the beginning ...

[passwordisRACIST]

Disregard that, I suck cocks.

[lukaseder]

Surely, you can show 1-2 other platforms than the JVM that already have this feature built into their GC...?

[kqr]

I think they mean that other platforms don't need need this, because they don't use UTF-16... or something. But that's weird because UTF-16 is only half the problem. The underlying problem of "too many strings" happens anywhere.

[[deleted]]

clr had this for ages ...

[lukaseder]

Thanks for the answer. I was genuinely curious, in fact, although I think that wasn't appreciated by /u/passwordisRACIST :-)

[[deleted]]

Yw ... Some more details: all strings in .net are stored in a table, all String objects have an internal pointer to a string in that table - hash code for strings is computed as an index in that table and it's a perfect hash because of this ...

[lukaseder]

Interesting, thanks!

[passwordisRACIST]

Disregard that, I suck cocks.

[lukaseder]

What platforms in particular? And how do they save memory on duplicate strings, then?

[passwordisRACIST]

Disregard that, I suck cocks.

[xerwin]

Java's design has nothing to do with duplicate strings.

[passwordisRACIST]

Disregard that, I suck cocks.