[BUG-347] Stop interest posting once the loan has moved to overpaid state

fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/domain/Loan.java

@@ -5053,6 +5053,10 @@ public class Loan extends AbstractPersistable<Long> {
                         accrualTransaction);
                 lastCompoundingDate = compoundingDetail.getEffectiveDate();
             }
+            LoanRepaymentScheduleInstallment lastInstallment = this.repaymentScheduleInstallments.get(this.repaymentScheduleInstallments
+                    .size() - 1);
+            reverseTransactionsPostEffectiveDate(incomeTransactions, lastInstallment.getDueDate());
+            reverseTransactionsPostEffectiveDate(accrualTransactions, lastInstallment.getDueDate());
         }
     }
 
@@ -5163,6 +5167,14 @@ public class Loan extends AbstractPersistable<Long> {
         return null;
     }
 
+    private void reverseTransactionsPostEffectiveDate(List<LoanTransaction> transactions, LocalDate effectiveDate) {
+        for (LoanTransaction loanTransaction : transactions) {
+            if (loanTransaction.getTransactionDate().isAfter(effectiveDate)) {
+                loanTransaction.reverse();
+            }
+        }
+    }
+
     private List<LoanInterestRecalcualtionAdditionalDetails> extractInterestRecalculationAdditionalDetails() {
         List<LoanInterestRecalcualtionAdditionalDetails> retDetails = new ArrayList<>();
         if (null != this.repaymentScheduleInstallments && this.repaymentScheduleInstallments.size() > 0) {