diff --git a/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java b/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
index ae8d8a5..2b18211 100644
--- a/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
+++ b/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
@@ -12,14 +12,14 @@ import net.corda.v5.application.membership.MemberLookup;
 import net.corda.v5.application.messaging.FlowSession;
 import net.corda.v5.base.annotations.Suspendable;
 import net.corda.v5.base.exceptions.CordaRuntimeException;
-import net.corda.v5.base.types.MemberX500Name;
 import net.corda.v5.ledger.utxo.UtxoLedgerService;
 import net.corda.v5.ledger.utxo.transaction.UtxoLedgerTransaction;
+import net.corda.v5.ledger.utxo.transaction.UtxoSignedTransaction;
 import net.corda.v5.ledger.utxo.transaction.UtxoTransactionValidator;
 
 @InitiatedBy(protocol = "gamestate-commit")
 public class CommitTrxResponder implements ResponderFlow {
-    
+
     private final static Logger log = LoggerFactory.getLogger(CommitTrxResponder.class);
 
     @CordaInject
@@ -27,12 +27,12 @@ public class CommitTrxResponder implements ResponderFlow {
 
     @CordaInject
     public UtxoLedgerService utxoLedgerService;
-    
+
     @Suspendable
     @Override
     public void call(FlowSession session) {
-        UtxoTransactionValidator txValidator = trxToValidate -> {
-            try {
+        try {
+            UtxoTransactionValidator txValidator = trxToValidate -> {
                 checkParticipants(session, trxToValidate);
 
                 /*
@@ -40,42 +40,40 @@ public class CommitTrxResponder implements ResponderFlow {
                  */
 
                 log.info("Approval for " + trxToValidate.getId());
-            } catch (Exception e) {
-                log.warn("Validation has failed. " +e.getMessage());
-                // We have to re-trow an exception to indicate validation failure
-                throw new CordaRuntimeException(e.getClass().getCanonicalName(), e.getMessage(), e.getCause());
-            }
-        };
+            };
 
-        try {
-            this.utxoLedgerService
-                .receiveFinality(session, txValidator);
+            UtxoSignedTransaction finalizedSignedTransaction = this.utxoLedgerService
+                    .receiveFinality(session, txValidator)
+                    .getTransaction();
+
+            log.info("Finished responder flow - " + finalizedSignedTransaction.getId());
         } catch (Exception e) {
             // Log Corda's specific message about finality validation failure
-            log.warn(e.getMessage()); 
+            log.warn(e.getMessage());
         }
     }
 
     @Suspendable
-    void checkParticipants(FlowSession session, UtxoLedgerTransaction gameStateUtxo) throws ParticipantException {
+    void checkParticipants(FlowSession session, UtxoLedgerTransaction gameStateUtxo) {
         final GameInfo info = new GameInfo(gameStateUtxo);
         final var conterpartyName = session.getCounterparty();
         if (info.issuer.compareTo(conterpartyName) != 0)
-            throw new ParticipantException("Issuer", conterpartyName, info.issuer);
+            throw new CordaRuntimeException("Bad Issuer. Expected: " + conterpartyName + " actual: " + info.issuer);
 
         final var myInfo = memberLookup.myInfo();
         if (VNode.isCordaCherckersCustodian(myInfo))
             return; // Custodian shall not validate state's counterparty
-        
+
         final var opponentName = info.state.getOpponentName(myInfo.getName()); // throws NotInvolved
         if (conterpartyName.compareTo(opponentName) != 0)
-            throw new ParticipantException("Opponent", conterpartyName, opponentName);
-    }
-
-    public static class ParticipantException extends Exception {
-        public ParticipantException(String role, MemberX500Name expected, MemberX500Name actual) {
-            super("Bad participants. " +role +" role: expected '" +expected +"', actual '" +actual +"'");
-        }
+            throw new CordaRuntimeException("Bad Opponent. Expcted: " + conterpartyName + " axtual: " + opponentName);
     }
 
+    // public static class ParticipantException extends Exception {
+    // public ParticipantException(String role, MemberX500Name expected,
+    // MemberX500Name actual) {
+    // super("Bad participants. " +role +" role: expected '" +expected +"', actual
+    // '" +actual +"'");
+    // }
+    // }
 }