diff --git a/kotlin-satlib-jni/src/main/cpp/JCadical.cpp b/kotlin-satlib-jni/src/main/cpp/JCadical.cpp
index e3ebb18..1a18fac 100644
--- a/kotlin-satlib-jni/src/main/cpp/JCadical.cpp
+++ b/kotlin-satlib-jni/src/main/cpp/JCadical.cpp
@@ -119,6 +119,7 @@ JNI_METHOD(void, cadical_1add_1assumption)
     jsize array_length = env->GetArrayLength(literals);
     CaDiCaL::Solver* solver = decode(p);
 
+    // TODO: use GetPrimitiveArrayCritical
     jint* array = env->GetIntArrayElements(literals, 0);
     for (int i = 0; i < array_length; i++) {
         solver->assume(array[i]);
diff --git a/kotlin-satlib-jni/src/main/kotlin/com/github/lipen/satlib/solver/jni/JCadical.kt b/kotlin-satlib-jni/src/main/kotlin/com/github/lipen/satlib/solver/jni/JCadical.kt
index e4c09f6..6611ffc 100644
--- a/kotlin-satlib-jni/src/main/kotlin/com/github/lipen/satlib/solver/jni/JCadical.kt
+++ b/kotlin-satlib-jni/src/main/kotlin/com/github/lipen/satlib/solver/jni/JCadical.kt
@@ -7,7 +7,7 @@ package com.github.lipen.satlib.solver.jni
 import com.github.lipen.satlib.utils.useWith
 import java.io.File
 
-@Suppress("FunctionName", "MemberVisibilityCanBePrivate", "unused")
+@Suppress("FunctionName", "MemberVisibilityCanBePrivate")
 class JCadical : AutoCloseable {
     private var handle: Long = 0
 
@@ -153,6 +153,7 @@ class JCadical : AutoCloseable {
         cadical_add_assumption(handle, literals)
     }
 
+    // TODO: Return enum SolveResult
     fun solve(): Boolean {
         return when (val result = cadical_solve(handle)) {
             0 -> false // UNSOLVED