IGNITE-26970 Fix serialization of GridNearTxFinishRequest#miniId (#12503)

Author: wernerdv

modules/core/src/main/java/org/apache/ignite/internal/processors/cache/distributed/near/GridNearTxFinishFuture.java

@@ -766,7 +766,7 @@ private void finish(int miniId, GridDistributedTxMapping m, boolean commit) {
 
         // If this is the primary node for the keys.
         if (n.isLocal()) {
-            req.miniId(miniId);
+            req.updateMiniId(miniId);
 
             IgniteInternalFuture<IgniteInternalTx> fut = cctx.tm().txHandler().finish(n.id(), tx, req);
 
@@ -777,7 +777,7 @@ private void finish(int miniId, GridDistributedTxMapping m, boolean commit) {
         else {
             FinishMiniFuture fut = new FinishMiniFuture(miniId, m);
 
-            req.miniId(fut.futureId());
+            req.updateMiniId(fut.futureId());
 
             add(fut); // Append new future.
 

modules/core/src/main/java/org/apache/ignite/internal/processors/cache/distributed/near/GridNearTxFinishRequest.java

@@ -133,9 +133,18 @@ public int miniId() {
     }
 
     /**
+     * For use only in GridNearTxFinishRequestSerializer.
+     *
      * @param miniId Mini future ID.
      */
     public void miniId(int miniId) {
+        this.miniId = miniId;
+    }
+
+    /**
+     * @param miniId Mini future ID.
+     */
+    public void updateMiniId(int miniId) {
         assert miniId > 0;
 
         this.miniId = miniId;

modules/core/src/test/java/org/apache/ignite/internal/managers/communication/IgniteIoCommunicationMessageSerializationTest.java

@@ -69,12 +69,5 @@ public TestIoMessageReader(int capacity) {
 
             return IgniteUuid.randomUuid();
         }
-
-        /** {@inheritDoc} */
-        @Override public int readInt() {
-            super.readInt();
-
-            return 1;
-        }
     }
 }