kotlin opengl trouble

//file utils
import android.util.Log
import java.io.BufferedReader
import java.io.IOException
import java.io.InputStreamReader
import java.nio.Buffer




object FileUtils {
    const val TAG: String = "FILE_UTILS_TAG"

    fun readTextFromRaw(context: Context, resId: Int): String{
        var bufferReader: BufferedReader? = null
        return try {
            val inputStream = context.resources.openRawResource(resId)
            val bufferedReader = BufferedReader(InputStreamReader(inputStream))
            var lines: String? = null
            lines = bufferedReader.readText()
            lines
        } catch (e: Exception){
            when(e){
                is IOException -> {e.printStackTrace(); ""}
                is Resources.NotFoundException -> {e.printStackTrace(); ""}
                else -> {""}
            }
        } finally {
            bufferReader?.close()
        }
    }
}