Isolator crash fix revision (#56)

Co-authored-by: Maya <[email protected]>
(cherry picked from commit 5f1b5da)

src/main/java/binnie/genetics/machine/isolator/IsolatorComponentLogic.java

@@ -1,12 +1,11 @@
 package binnie.genetics.machine.isolator;
 
+import java.util.Arrays;
+import java.util.Objects;
 import java.util.Random;
 
 import net.minecraft.item.ItemStack;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-
 import binnie.core.genetics.Gene;
 import binnie.core.machines.Machine;
 import binnie.core.machines.inventory.IChargedSlots;
@@ -17,14 +16,13 @@
 import binnie.genetics.item.ItemSequence;
 import forestry.api.genetics.AlleleManager;
 import forestry.api.genetics.IAllele;
+import forestry.api.genetics.IChromosome;
 import forestry.api.genetics.IChromosomeType;
 import forestry.api.genetics.IIndividual;
 import forestry.api.genetics.ISpeciesRoot;
 
 public class IsolatorComponentLogic extends ComponentProcessSetCost implements IProcess {
 
-    private static final Logger LOG = LogManager.getLogger("Genetics");
-
     protected float enzymePerProcess = 0.5f;
     protected float ethanolPerProcess = 10.0f;
 
@@ -83,22 +81,19 @@ protected void onFinishTask() {
         }
 
         final IChromosomeType[] karyo = root.getKaryotype();
-        final IChromosomeType chromosome = karyo[rand.nextInt(karyo.length)];
-        final IAllele allele;
-        try {
-            allele = rand.nextBoolean() ? individual.getGenome().getActiveAllele(chromosome)
-                    : individual.getGenome().getInactiveAllele(chromosome);
-        } catch (NullPointerException npe) {
-            // just return and eat the power without eating the rest of it
-            LOG.warn(
-                    "NPE occurred on unknown gene: name: " + chromosome.getName()
-                            + " | ordinal: "
-                            + chromosome.ordinal()
-                            + " | is null? "
-                            + (individual.getGenome().getChromosomes()[chromosome.ordinal()] == null ? "true"
-                                    : "false"));
+
+        final IChromosome[] chromosomes = individual.getGenome().getChromosomes();
+        if (Arrays.stream(chromosomes).allMatch(Objects::isNull)) {
             return;
         }
+
+        IChromosomeType chromosome;
+        do {
+            chromosome = karyo[rand.nextInt(karyo.length)];
+        } while (chromosomes[chromosome.ordinal()] == null);
+
+        final IAllele allele = rand.nextBoolean() ? individual.getGenome().getActiveAllele(chromosome)
+                : individual.getGenome().getInactiveAllele(chromosome);
         final Gene gene = new Gene(allele, chromosome, root);
 
         ItemStack serum = ItemSequence.create(gene);