define CARBON_FIND_CLASS macro to be used later

src/native/carbon.hpp

@@ -14,6 +14,12 @@
 		NULLPTR_THROW(cname);\
 		return;\
 	}
+#if MODE == DEBUG
+#define CARBON_FIND_CLASS(varn, cname) jclass clazz = env->FindClass(cname);\
+    if (clazz == NULL) return NULL;
+#else
+#define CARBON_FIND_CLASS(varn, cname) jclass clazz = env->FindClass(cname);
+#endif
 
 // codename for NN JNI is Carbon because i needed something better than NN JNI
 
@@ -52,6 +58,7 @@ namespace Carbon {
     // typedef nn_Exit (nn_ComponentHandler)(nn_ComponentRequest *request);
     nn_Exit JNIComponentHandler(nn_ComponentRequest* request);
     bool CallGC(JNIEnv* env);
+
 }
 namespace Carbon::Exceptions {
     CARBON_EXCEPTION_FUNC(ThrowNullPtr, "java/lang/NullPointerException");