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points by emoII 14 hours ago | 0 comments

So it is an antipattern nowadays to manipulate the classpath after building? Iirc native image require static classpath, but it is quite common to inject e.g. environment specific data via the classpath. Should one just read from the filesystem instead, or what’s the strat there?

[–] crschnick 13 hours ago

With the AOT cache, you can actually modify the classpath (or module path as is now used for modern applications) after it has started up. The names and classes for the APIs are different, but you can still load jars at runtime even with the AOT cache enabled and functional.

The AOT cache compatibility issues come when your boot module path differs between training and actual run. As long as that is not the case, you can use it without problem and load additional modules at runtime after it has started up.

With GraalVM, that is not possible. It still has the closed-world assumption.