Cassandra Stress not working on Java 15+

[CodeLieutenant]

Java 15 removed Nashorn engine, and due to this, cassandra-stress is not working on modern Java versions

[mykaul]

It is continued separately - see https://mvnrepository.com/artifact/org.openjdk.nashorn/nashorn-core

[fruch]

@CodeLieutenant

what's c-s is doing with this engine ? I don't remember any feature we are using and passing into it javascript...

[CodeLieutenant]

@fruch, since this is a Apache Cassandra Codebase (I've remove much of it's source code), there is a possibility in it to define UDFs in Javascript. Thats executed with Nashorn engine, and since c-s is derived from Cassandra's source code, it also does depend on JS engine. There is no scripting available to c-s, but it's really hard to remove it from the source code.

[fruch]

@fruch, since this is a Apache Cassandra Codebase (I've remove much of it's source code), there is a possibility in it to define UDFs in Javascript. Thats executed with Nashorn engine, and since c-s is derived from Cassandra's source code, it also does depend on JS engine. There is no scripting available to c-s, but it's really hard to remove it from the source code.

Why it's hard, if we don't have any functionality in c-s using it directly ?

[fruch]

I rather invest in taking it out of the code, then invest in replacing the library

[CodeLieutenant]

I was thinking the same, removing it would be great if it's possible, replacing the library can be a temporary fix if needed.
But good solution is to remove it completly

[CodeLieutenant]

Why it's hard, if we don't have any functionality in c-s using it directly ?

Cause c-s is using Apache Cassandra as a base, so other classes are referencing the Nashorn and so on, Dep Tree, this make is really hard to remove it

[fruch]

Why it's hard, if we don't have any functionality in c-s using it directly ?

Cause c-s is using Apache Cassandra as a base, so other classes are referencing the Nashorn and so on, Dep Tree, this make is really hard to remove it

It's mentioned only in two files, I think it should be that hard.

Anyhow there is no rush for supporting newer java versions