diff --git a/hazelcast/src/test/java/com/hazelcast/internal/server/tcp/SingleEncoderDecoderTest.java b/hazelcast/src/test/java/com/hazelcast/internal/server/tcp/SingleEncoderDecoderTest.java
deleted file mode 100644
index 7dec094adfed..000000000000
--- a/hazelcast/src/test/java/com/hazelcast/internal/server/tcp/SingleEncoderDecoderTest.java
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.hazelcast.internal.server.tcp;
-
-import com.hazelcast.instance.ProtocolType;
-import com.hazelcast.internal.networking.Channel;
-import com.hazelcast.internal.networking.OutboundHandler;
-import com.hazelcast.internal.networking.OutboundPipeline;
-import com.hazelcast.test.HazelcastParallelParametersRunnerFactory;
-import com.hazelcast.test.HazelcastParametrizedRunner;
-import com.hazelcast.test.HazelcastTestSupport;
-import com.hazelcast.test.annotation.ParallelJVMTest;
-import com.hazelcast.test.annotation.QuickTest;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.experimental.categories.Category;
-import org.junit.rules.ExpectedException;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-
-import java.nio.ByteBuffer;
-import java.util.Collection;
-import java.util.Objects;
-
-import static com.hazelcast.instance.ProtocolType.CLIENT;
-import static com.hazelcast.instance.ProtocolType.MEMBER;
-import static com.hazelcast.internal.nio.Protocols.CLIENT_BINARY;
-import static com.hazelcast.internal.nio.Protocols.CLUSTER;
-import static java.util.Arrays.asList;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
-@RunWith(HazelcastParametrizedRunner.class)
-@Parameterized.UseParametersRunnerFactory(HazelcastParallelParametersRunnerFactory.class)
-@Category({QuickTest.class, ParallelJVMTest.class})
-public class SingleEncoderDecoderTest extends HazelcastTestSupport {
-
-    @Rule
-    public ExpectedException expect = ExpectedException.none();
-
-    @Parameterized.Parameter
-    public ProtocolType supportedProtocol;
-    @Parameterized.Parameter(1)
-    public String receivedProtocol;
-
-    @Parameterized.Parameters(name = "supportedProtocol:{0}, receivedProtocol:{1}")
-    public static Collection<Object[]> parameters() {
-        return asList(new Object[][]{
-                {MEMBER, CLUSTER},
-                {MEMBER, CLIENT_BINARY},
-                {MEMBER, "ASD"},
-                {CLIENT, CLIENT_BINARY},
-                {CLIENT, CLUSTER},
-                {CLIENT, "ASD"},
-        });
-    }
-
-    @Test
-    public void testIncompatibleProtocolSentToClient() {
-        // Set up encoder and decoder
-        SingleProtocolEncoder protocolEncoder = new SingleProtocolEncoder((OutboundHandler) null);
-        SingleProtocolDecoder protocolDecoder = new SingleProtocolDecoder(supportedProtocol, null, protocolEncoder);
-
-        // Set up buffers
-        ByteBuffer encoderDst = ByteBuffer.allocate(1000);
-        ByteBuffer decoderSrc = ByteBuffer.allocate(1000);
-
-        encoderDst.flip();
-        decoderSrc.clear();
-
-        decoderSrc.put(receivedProtocol.getBytes());
-
-        protocolEncoder.dst(encoderDst);
-        protocolDecoder.src(decoderSrc);
-
-        // Mock channel in encoder
-        Channel mockedChannel = mock(Channel.class);
-        OutboundPipeline mockedPipeline = mock(OutboundPipeline.class);
-
-        when(mockedChannel.outboundPipeline()).thenReturn(mockedPipeline);
-        when(mockedPipeline.wakeup()).then(invocationOnMock -> {
-            protocolEncoder.onWrite();
-            return null;
-        });
-        protocolEncoder.setChannel(mockedChannel);
-
-        // If protocols doesn't match expect ProtocolException else NPE is thrown because channel is mocked
-        if (Objects.equals(supportedProtocol.getDescriptor(), receivedProtocol)) {
-            expect.expect(NullPointerException.class);
-        } else {
-            expect.expect(ProtocolException.class);
-        }
-        protocolDecoder.onRead();
-    }
-}
-