In JShell, how to load Java code from a string?

Question

I have implemented a method that generates Java code:

public static String generate() { ... }

It returns Java code as a String, i.e. I might get

"public class X { public static String x() { return \"x\"; } }"

as a value returned by generate. Now, I am in a JShell Tool (JEP-222) session, and I can call generate, but I fail to load the result of generate into JShell itself.

Ideally I'd like to achieve the following

jshell> eval(generate());
|  created class X

jshell> X.x();
$2 ==> "x"

In the above (hypothetical) JShell sesssion, eval is the function that I am looking for.

Possible solutions I already tried:

• I know that this would be possible by calling JShell#eval but I failed to obtain the JShell object that represents the currently running JShell.
• It might be that there is some facility in JShell that allows lifting a String to a Snippet. I couldn't find something like that, but if there is, it might be helpful.
• I know that I can /open a file, so it might be possible to write the String to a file and then open/load it. However this is a two-step process, and I would prefer to have a solution that is simpler.