Fixed record components being null

Author: Lenni0451

src/main/java/net/raphimc/javadowngrader/transformer/j15/RecordReplacer.java

@@ -25,6 +25,7 @@
 import org.objectweb.asm.tree.ClassNode;
 import org.objectweb.asm.tree.RecordComponentNode;
 
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
@@ -56,6 +57,9 @@ public static void replace(final ClassNode classNode) {
         if (classNode.signature != null) {
             classNode.signature = classNode.signature.replace("Ljava/lang/Record;", "Ljava/lang/Object;");
         }
+        if (classNode.recordComponents == null) {
+            classNode.recordComponents = Collections.emptyList();
+        }
 
         classNode.methods.remove(ASMUtil.getMethod(classNode, "equals", EQUALS_DESC));
         final MethodVisitor equals = classNode.visitMethod(Opcodes.ACC_PUBLIC, "equals", EQUALS_DESC, null, null);