FINERACT-2421: Fix interest period balance correction amount

Author: adamsaghy

fineract-progressive-loan/src/main/java/org/apache/fineract/portfolio/loanproduct/calc/data/InterestPeriod.java

@@ -111,7 +111,9 @@ public int compareTo(@NotNull InterestPeriod o) {
     }
 
     public void addBalanceCorrectionAmount(final Money additionalBalanceCorrectionAmount) {
-        if (this.getBalanceCorrectionAmount().isGreaterThanZero() && additionalBalanceCorrectionAmount.isLessThanZero()) {
+        //Double deduct from last interest period to clear overdue amount
+        if (this.getBalanceCorrectionAmount().isGreaterThanZero() && additionalBalanceCorrectionAmount.isLessThanZero()
+                && isLastInterestPeriod()) {
             this.balanceCorrectionAmount = MathUtil.plus(this.getBalanceCorrectionAmount(), additionalBalanceCorrectionAmount,
                     additionalBalanceCorrectionAmount);
         } else {
@@ -203,6 +205,10 @@ public boolean isFirstInterestPeriod() {
         return this.equals(getRepaymentPeriod().getFirstInterestPeriod());
     }
 
+    private boolean isLastInterestPeriod() {
+        return this.equals(getRepaymentPeriod().getLastInterestPeriod());
+    }
+
     private MonetaryCurrency getCurrency() {
         return getRepaymentPeriod().getCurrency();
     }