modules/client-handler/src/integrationTest/java/org/apache/ignite/client/handler/ItClientHandlerTest.java [232:259]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            packer.packInt(0); // Patch.

            packer.packInt(2); // Client type: general purpose.

            packer.packBinaryHeader(0); // Features.
            packer.packMapHeader(0); // Extensions.

            out.write(packer.toByteArray());
            out.flush();

            // Read response.
            var unpacker = MessagePack.newDefaultUnpacker(sock.getInputStream());
            var magic = unpacker.readPayload(4);
            unpacker.readPayload(4); // Length.
            final var major = unpacker.unpackInt();
            final var minor = unpacker.unpackInt();
            final var patch = unpacker.unpackInt();

            unpacker.skipValue(); // traceId
            final var code = unpacker.tryUnpackNil() ? INTERNAL_ERR : unpacker.unpackInt();
            final var errClassName = unpacker.unpackString();
            final var errMsg = unpacker.tryUnpackNil() ? null : unpacker.unpackString();
            final var errStackTrace = unpacker.tryUnpackNil() ? null : unpacker.unpackString();

            assertArrayEquals(MAGIC, magic);
            assertEquals(3, major);
            assertEquals(0, minor);
            assertEquals(0, patch);
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



modules/client-handler/src/integrationTest/java/org/apache/ignite/client/handler/ItClientHandlerTest.java [285:312]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            packer.packInt(0); // Patch.

            packer.packInt(2); // Client type: general purpose.

            packer.packBinaryHeader(0); // Features.
            packer.packMapHeader(0); // Extensions.

            out.write(packer.toByteArray());
            out.flush();

            // Read response.
            var unpacker = MessagePack.newDefaultUnpacker(sock.getInputStream());
            var magic = unpacker.readPayload(4);
            unpacker.readPayload(4); // Length.
            final var major = unpacker.unpackInt();
            final var minor = unpacker.unpackInt();
            final var patch = unpacker.unpackInt();

            unpacker.skipValue(); // traceId
            final var code = unpacker.tryUnpackNil() ? INTERNAL_ERR : unpacker.unpackInt();
            final var errClassName = unpacker.unpackString();
            final var errMsg = unpacker.tryUnpackNil() ? null : unpacker.unpackString();
            final var errStackTrace = unpacker.tryUnpackNil() ? null : unpacker.unpackString();

            assertArrayEquals(MAGIC, magic);
            assertEquals(3, major);
            assertEquals(0, minor);
            assertEquals(0, patch);
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -