fix 20bp records findings

src/main/java/cz/mendelu/dnaAnalyser/analyse/zdna/ZdnaAnalyser.java

@@ -20,7 +20,7 @@ public class ZdnaAnalyser {
      *
      * @param minSequenceSize minimal length of searched sequences.
      * @param threshold minimal KV score of searched sequences.
-     * @return array of ZdnaAnalyseResults.
+     * @return arraylist of ZdnaAnalyseResults.
      */
     public ArrayList<ZdnaAnalyseResult> getResults(Window sequenceWindow, int minSequenceSize, float threshold) {
         ArrayList<ZdnaAnalyseResult> allResults = new ArrayList<>();
@@ -33,11 +33,14 @@ public class ZdnaAnalyser {
         int tmpScore;
         int len = 1;
 
-        while (i < (sequenceWindow.getSize() - 1)) {
-            Nucleotide now = sequenceWindow.get(i);
-            Nucleotide next = sequenceWindow.get(i + 1);
+        while (i < (sequenceWindow.getSize())) {
+            tmpScore = 0;
+            if (i < (sequenceWindow.getSize() - 1)) {
+                Nucleotide now = sequenceWindow.get(i);
+                Nucleotide next = sequenceWindow.get(i + 1);
 
-            tmpScore = getSubScore(now, next);
+                tmpScore = getSubScore(now, next);
+            }
             if (tmpScore > 0) {
                 len++;
                 score += tmpScore;