define CARBON_FIND_CLASS macro to be used later

Makefile

@@ -4,6 +4,7 @@ AR=ar
 CFLAGS=-Wall -Wextra
 LD_FLAGS=
 TARGET=libcarbon.so
+MODE=DEBUG
 
 BASE_PATH=./src/main/org/neoflock/NeoNucleus
 JAVA_HOME=/usr/lib/jvm/java-25-openjdk/
@@ -32,7 +33,7 @@ $(TARGET): $(OBJS) src/native/libneonucleus.a
 	 $(OBJS) src/native/libneonucleus.a $(TLA_PATH)/foreign/lua54/liblua.a -lc $(LD_FLAGS)
 
 %.o: %.cpp
-	$(CXX) -c -fPIC -I${JAVA_HOME}/include -I${JAVA_HOME}/include/linux $(CFLAGS) \
+	$(CXX) -c -fPIC -I${JAVA_HOME}/include -I${JAVA_HOME}/include/linux $(CFLAGS) -DMODE=$(MODE) \
 	 $< -o $@
 
 java: ${JAVA_CLASSES}

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");