CyclopsMC / IntegratedScripting / 33627837061

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Pre-initialize TRegex in the Graal fallback classloader

Since Graal 25.1, TruffleLogger.getLogger validates the language id it is
given, and TRegex resolves its static loggers on first regex compilation.
That resolution goes through the thread context classloader, which on a
server thread is NeoForge's classloader that does not see the packaged
Graal jars, so it fails with "Unknown language or instrument id regex".
Because this happens inside a static initializer, the failure is permanent
for the JVM session, and every later script using a regex reports
"NoClassDefFoundError: Could not initialize class
com.oracle.truffle.regex.tregex.util.Loggers".

Compiling a regex during the startup pre-load initializes TRegex while the
context classloader still points to the Graal fallback classloader.

Closes #68

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DwXjG9jWXimuecAeHk5oby

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