[fix][test] fix testEndTxnWhenCommittingOrAborting flaky test (apache#18318)

Author: congbobo184

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/PulsarCommandSenderImpl.java

@@ -34,7 +34,6 @@
 import org.apache.pulsar.common.api.proto.CommandTopicMigrated.ResourceType;
 import org.apache.pulsar.common.api.proto.ProtocolVersion;
 import org.apache.pulsar.common.api.proto.ServerError;
-import org.apache.pulsar.common.api.proto.TxnAction;
 import org.apache.pulsar.common.protocol.Commands;
 import org.apache.pulsar.common.protocol.schema.SchemaVersion;
 import org.apache.pulsar.common.schema.SchemaInfo;
@@ -355,9 +354,6 @@ public void sendEndTxnErrorResponse(long requestId, TxnID txnID, ServerError err
         safeIntercept(command, cnx);
         ByteBuf outBuf = Commands.serializeWithSize(command);
         writeAndFlush(outBuf);
-        if (this.interceptor != null) {
-            this.interceptor.txnEnded(txnID.toString(), TxnAction.ABORT_VALUE);
-        }
     }
 
     @Override

pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/CounterBrokerInterceptor.java

@@ -51,20 +51,20 @@
 @Slf4j
 public class CounterBrokerInterceptor implements BrokerInterceptor {
 
-    private AtomicInteger beforeSendCount = new AtomicInteger();
-    private AtomicInteger beforeSendCountAtConsumerLevel = new AtomicInteger();
-    private AtomicInteger count = new AtomicInteger();
-    private AtomicInteger connectionCreationCount = new AtomicInteger();
-    private AtomicInteger producerCount = new AtomicInteger();
-    private AtomicInteger consumerCount = new AtomicInteger();
-    private AtomicInteger messagePublishCount = new AtomicInteger();
-    private AtomicInteger messageCount = new AtomicInteger();
-    private AtomicInteger messageDispatchCount = new AtomicInteger();
-    private AtomicInteger messageAckCount = new AtomicInteger();
-    private AtomicInteger handleAckCount = new AtomicInteger();
-    private AtomicInteger txnCount = new AtomicInteger();
-    private AtomicInteger committedTxnCount = new AtomicInteger();
-    private AtomicInteger abortedTxnCount = new AtomicInteger();
+    private final AtomicInteger beforeSendCount = new AtomicInteger();
+    private final AtomicInteger beforeSendCountAtConsumerLevel = new AtomicInteger();
+    private final AtomicInteger count = new AtomicInteger();
+    private final AtomicInteger connectionCreationCount = new AtomicInteger();
+    private final AtomicInteger producerCount = new AtomicInteger();
+    private final AtomicInteger consumerCount = new AtomicInteger();
+    private final AtomicInteger messagePublishCount = new AtomicInteger();
+    private final AtomicInteger messageCount = new AtomicInteger();
+    private final AtomicInteger messageDispatchCount = new AtomicInteger();
+    private final AtomicInteger messageAckCount = new AtomicInteger();
+    private final AtomicInteger handleAckCount = new AtomicInteger();
+    private final AtomicInteger txnCount = new AtomicInteger();
+    private final AtomicInteger committedTxnCount = new AtomicInteger();
+    private final AtomicInteger abortedTxnCount = new AtomicInteger();
 
     public void reset() {
         beforeSendCount.set(0);
@@ -81,7 +81,7 @@ public void reset() {
         abortedTxnCount.set(0);
     }
 
-    private List<ResponseEvent> responseList = new ArrayList<>();
+    private final List<ResponseEvent> responseList = new ArrayList<>();
 
     @Data
     @AllArgsConstructor

pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/TransactionTest.java

@@ -920,11 +920,11 @@ public void testEndTxnWhenCommittingOrAborting() throws Exception {
         field.set(abortTxn, TransactionImpl.State.ABORTING);
 
 
-        assertEquals(((CounterBrokerInterceptor)listener).getTxnCount(),2);
+        Awaitility.await().untilAsserted(() -> assertEquals(listener.getTxnCount(),2));
         abortTxn.abort().get();
-        assertEquals(((CounterBrokerInterceptor)listener).getAbortedTxnCount(),1);
+        Awaitility.await().untilAsserted(() -> assertEquals(listener.getAbortedTxnCount(),1));
         commitTxn.commit().get();
-        assertEquals(((CounterBrokerInterceptor)listener).getCommittedTxnCount(),1);
+        Awaitility.await().untilAsserted(() -> assertEquals(listener.getCommittedTxnCount(),1));
     }
 
     @Test