Make Truffle from GraalVM 23.1 work with Quarkus in prod mode

Fixes: quarkusio#36242

independent-projects/bootstrap/runner/src/main/java/io/quarkus/bootstrap/runner/QuarkusEntryPoint.java

@@ -5,14 +5,18 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
+import java.io.UncheckedIOException;
 import java.lang.reflect.InvocationTargetException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import io.quarkus.bootstrap.forkjoin.QuarkusForkJoinWorkerThread;
 import io.quarkus.bootstrap.logging.InitialConfigurator;
@@ -38,10 +42,7 @@ public static void main(String... args) throws Throwable {
 
     private static void doRun(Object args) throws IOException, ClassNotFoundException, IllegalAccessException,
             InvocationTargetException, NoSuchMethodException {
-        String path = QuarkusEntryPoint.class.getProtectionDomain().getCodeSource().getLocation().getPath();
-        String decodedPath = URLDecoder.decode(path, "UTF-8");
-        Path appRoot = new File(decodedPath).toPath().getParent().getParent().getParent();
-
+        Path appRoot = getAppRoot();
         if (Boolean.parseBoolean(System.getenv("QUARKUS_LAUNCH_DEVMODE"))) {
             DevModeMediator.doDevMode(appRoot);
         } else if (Boolean.getBoolean("quarkus.launch.rebuild")) {
@@ -66,6 +67,35 @@ private static void doRun(Object args) throws IOException, ClassNotFoundExceptio
         }
     }
 
+    /**
+     * This attempts to set {@code java.class.path} with all the jars in the system.
+     * It is not a complete solution as it only includes jar dependencies
+     */
+    public static void setClassPathSystemProp() {
+        try {
+            Path appRoot = getAppRoot();
+            Path libDir = appRoot.resolve("lib");
+            Path bootLibs = libDir.resolve("boot");
+            Path mainLibs = libDir.resolve("main");
+
+            Stream<Path> bootLibsStream = Files.list(bootLibs);
+            Stream<Path> mainLibsStream = Files.list(mainLibs);
+
+            var result = Stream.concat(bootLibsStream, mainLibsStream).map(p -> p.toAbsolutePath().toString())
+                    .collect(Collectors.joining(":"));
+
+            System.setProperty("java.class.path", result);
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    private static Path getAppRoot() {
+        String path = QuarkusEntryPoint.class.getProtectionDomain().getCodeSource().getLocation().getPath();
+        String decodedPath = URLDecoder.decode(path, StandardCharsets.UTF_8);
+        return new File(decodedPath).toPath().getParent().getParent().getParent();
+    }
+
     private static void doReaugment(Path appRoot) throws IOException, ClassNotFoundException, IllegalAccessException,
             InvocationTargetException, NoSuchMethodException {
         if (!Files.exists(appRoot.resolve(LIB_DEPLOYMENT_DEPLOYMENT_CLASS_PATH_DAT))) {