Fix crash in dev due to modern dependency change.

Author: Fox2Code

loader/src/main/java/com/fox2code/foxloader/launcher/FoxClassLoader.java

@@ -109,7 +109,7 @@ protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundE
         } else {
             c = findLoadedClass(name);
             if (c == null) {
-                URL resource = findResource(name.replace('.', '/') + ".class");
+                URL resource = this.findResource(name.replace('.', '/') + ".class");
                 if (resource != null) {
                     synchronized (getClassLoadingLock(name)) {
                         c = findClassImpl(name, resource);
@@ -119,7 +119,7 @@ protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundE
                         c = super.loadClass(name, false);
                     } catch (SecurityException securityException) {
                         throw new ClassNotFoundException(name, securityException);
-                    } catch (ClassNotFoundException e) {
+                    } catch (ClassNotFoundException | UnsupportedClassVersionError e) {
                         synchronized (getClassLoadingLock(name)) {
                             c = findClassImpl(name, null);
                         }
@@ -506,11 +506,14 @@ public static boolean isSpecialClassName(String cls) {
                 cls.startsWith("com.unascribed.ears.") ||
                 cls.startsWith("com.llamalad7.mixinextras.") ||
                 cls.startsWith("com.bawnorton.mixinsquared.") ||
+                cls.startsWith("com.moulberry.mixinconstraints.") ||
                 cls.startsWith("fr.catcore.cursedmixinextensions.") ||
                 cls.startsWith("org.spongepowered.") ||
                 cls.startsWith("org.objectweb.asm.") ||
                 cls.startsWith("com.fox2code.rebuild.") ||
                 cls.startsWith("com.fox2code.foxevents.") ||
+                // We also need to add Java21+ dependencies here to prevent crashes.
+                cls.startsWith("blue.endless.jankson.") ||
                 // Cover an edge case of loading spark in a development environment
                 cls.startsWith("me.lucko.spark.") ||
                 // Special case for JVMDowngrader

loader/src/main/java/com/fox2code/foxloader/launcher/GameDependencyImpl.java

@@ -46,10 +46,12 @@ public boolean isDevelopingMod() {
         return FoxLauncher.DEV_MODE;
     }
 
+    @Override
     public boolean hasClass(String cls) {
         return FoxLauncher.getFoxClassLoader().hasClass(cls);
     }
 
+    @Override
     public void addDependency(File file, DependencyHelper.Dependency dependency, boolean isMinecraft) throws IOException {
         FoxLauncher.filesToLoad.remove(file);
         if (isMinecraft) {
@@ -67,14 +69,17 @@ public void checkAddDependency(File file, DependencyHelper.Dependency dependency
         }
     }
 
+    @Override
     public boolean isClassLoaderInitialized() {
         return FoxLauncher.getFoxClassLoader() != null;
     }
 
+    @Override
     public void printStackTrace(Throwable throwable) {
         FoxLauncher.printEarlyStackTrace(throwable);
     }
 
+    @Override
     public File checkMCLibraryRoot(File mcLibraries) {
         String mcLibrariesPath;
         switch (Platform.getPlatform()) {