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The server calculates a private/public keypair
Шанхайские Драконы
The fix was a persistent JVM daemon I wrote called CompileServer. It’s a Java program that boots once, loads the compiler API via javax.tools.JavaCompiler, and then sits there waiting for work over stdin. When you send it source code, it compiles in-process using the already-loaded compiler. When you want to run the compiled class, it uses a URLClassLoader to load and execute it. Same JVM. No restarts. No twelve minute tax.