src/test: free pointers

src/test/javacompat.cpp

@@ -93,6 +93,7 @@ int main(){
 
     ASSERT(exportedString == javaStdString);
     std::cout << "Passed Export Java string test." << std::endl;
+    delete nextChar;
 
 return 0;
 }

src/test/nbt_helpers.cpp

@@ -494,6 +494,6 @@ int main(){
     ASSERT(NBT::helper::readString(reinterpret_cast<uint8_t*>(javaStdString.data()), 0xFFFFF, 0).errorCode == ErrorCodes::OVERRUN);
     ASSERT(NBT::helper::readString(reinterpret_cast<uint8_t*>(javaStdString.data()), 0xF, 0).errorCode == ErrorCodes::MISMATCHEDSIZE);
     std::cout << "Passed readString NBT helper test." << std::endl;
-
+    delete nextChar;
     return 0;
 }