Remove incorrect imports of transitive dependencies

src/test/java/io/tarantool/driver/TarantoolUtils.java

@@ -1,7 +1,6 @@
 package io.tarantool.driver;
 
 import io.tarantool.driver.utils.Assert;
-import org.testcontainers.shaded.org.apache.commons.lang3.StringUtils;
 
 import java.util.Arrays;
 import java.util.Collections;
@@ -18,7 +17,7 @@ private TarantoolUtils() {
     public static boolean versionGreaterOrEqualThen(String tarantoolVersion) {
         Assert.notNull(tarantoolVersion, "tarantoolVersion must not be null");
         String tarantoolCiVersion = java.lang.System.getenv(TARANTOOL_VERSION);
-        if (StringUtils.isEmpty(tarantoolCiVersion)) {
+        if (tarantoolCiVersion == null || tarantoolCiVersion.isEmpty()) {
             return true;
         }
         TarantoolVersion ciVersion = new TarantoolVersion(tarantoolCiVersion);
@@ -44,7 +43,8 @@ public static class TarantoolVersion {
         private Integer minor;
 
         public TarantoolVersion(String stringVersion) {
-            List<String> majorMinor = StringUtils.isEmpty(stringVersion) ? Collections.emptyList() :
+            List<String> majorMinor = stringVersion == null || stringVersion.isEmpty() ?
+                Collections.emptyList() :
                 Arrays.stream(stringVersion.split("\\."))
                     .collect(Collectors.toList());
             if (majorMinor.size() >= 1) {

src/test/java/io/tarantool/driver/integration/ConnectionIT.java

@@ -22,7 +22,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.shaded.com.fasterxml.jackson.databind.util.ClassUtil;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -364,6 +363,6 @@ public void test_AddressProviderReturnsNull_shouldThrowTarantoolClientException(
 
         // then
         TarantoolClientException exception = assertThrows(TarantoolClientException.class, client::getVersion);
-        assertFalse(ClassUtil.getRootCause(exception) instanceof NullPointerException);
+        assertFalse(Utils.getRootCause(exception) instanceof NullPointerException);
     }
 }

src/test/java/io/tarantool/driver/integration/ConvertersWithClusterClientIT.java

@@ -13,13 +13,11 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.EnabledIf;
-import org.testcontainers.shaded.org.apache.commons.lang3.ArrayUtils;
 
 import java.time.Instant;
 import java.util.UUID;
 
 import java.nio.charset.StandardCharsets;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -87,7 +85,7 @@ public void test_boxSelect_shouldReturnTupleWithInstant() throws Exception {
     public void test_boxOperations_shouldWorkWithVarbinary() throws Exception {
         //given
         byte[] bytes = "hello".getBytes(StandardCharsets.UTF_8);
-        List<Byte> byteList = Arrays.asList(ArrayUtils.toObject(bytes));
+        List<Byte> byteList = Utils.convertBytesToByteList(bytes);
         client.space("space_with_varbinary")
             .insert(tupleFactory.create(1, bytes)).get();
 
@@ -98,7 +96,7 @@ public void test_boxOperations_shouldWorkWithVarbinary() throws Exception {
 
         //then
         byte[] bytesFromTarantool = fields.getByteArray("varbinary_field");
-        List<Byte> byteListFromTarantool = Arrays.asList(ArrayUtils.toObject(bytesFromTarantool));
+        List<Byte> byteListFromTarantool = Utils.convertBytesToByteList(bytesFromTarantool);
         Assertions.assertEquals(byteList, byteListFromTarantool);
     }
 }

src/test/java/io/tarantool/driver/integration/ConvertersWithProxyClientIT.java

@@ -13,13 +13,11 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.EnabledIf;
-import org.testcontainers.shaded.org.apache.commons.lang3.ArrayUtils;
 
 import java.time.Instant;
 import java.util.UUID;
 
 import java.nio.charset.StandardCharsets;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -89,7 +87,7 @@ public void test_crudSelect_shouldReturnTupleWithInstant() throws Exception {
     public void test_crudOperations_shouldWorkWithVarbinary() throws Exception {
         //given
         byte[] bytes = "hello".getBytes(StandardCharsets.UTF_8);
-        List<Byte> byteList = Arrays.asList(ArrayUtils.toObject(bytes));
+        List<Byte> byteList = Utils.convertBytesToByteList(bytes);
         client.space("space_with_varbinary")
             .insert(tupleFactory.create(1, bytes)).get();
 
@@ -100,15 +98,15 @@ public void test_crudOperations_shouldWorkWithVarbinary() throws Exception {
 
         //then
         byte[] bytesFromTarantool = fields.getByteArray("varbinary_field");
-        List<Byte> byteListFromTarantool = Arrays.asList(ArrayUtils.toObject(bytesFromTarantool));
+        List<Byte> byteListFromTarantool = Utils.convertBytesToByteList(bytesFromTarantool);
         Assertions.assertEquals(byteList, byteListFromTarantool);
     }
 
     @Test
     public void test_crudOperations_shouldWorkWithBytesAsString() throws Exception {
         //given
         byte[] bytes = "hello".getBytes(StandardCharsets.UTF_8);
-        List<Byte> byteList = Arrays.asList(ArrayUtils.toObject(bytes));
+        List<Byte> byteList = Utils.convertBytesToByteList(bytes);
         client.space("space_with_string")
             .insert(tupleFactory.create(1, bytes)).get();
 
@@ -119,7 +117,7 @@ public void test_crudOperations_shouldWorkWithBytesAsString() throws Exception {
 
         //then
         byte[] bytesFromTarantool = fields.getByteArray("string_field");
-        List<Byte> byteListFromTarantool = Arrays.asList(ArrayUtils.toObject(bytesFromTarantool));
+        List<Byte> byteListFromTarantool = Utils.convertBytesToByteList(bytesFromTarantool);
         Assertions.assertEquals(byteList, byteListFromTarantool);
     }
 }

src/test/java/io/tarantool/driver/integration/ReconnectIT.java

@@ -19,7 +19,6 @@
 import io.tarantool.driver.core.TarantoolDaemonThreadFactory;
 import io.tarantool.driver.exceptions.TarantoolNoSuchProcedureException;
 import io.tarantool.driver.mappers.factories.DefaultMessagePackMapperFactory;
-import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
@@ -369,7 +368,6 @@ private void replaceInstancesInfo(
         client.space("instances_info").replace(tuple).join();
     }
 
-    @NotNull
     private List<TarantoolServerAddress> getShuffledTarantoolServerAddresses() {
         List<TarantoolServerAddress> addresses = Arrays.asList(
             new TarantoolServerAddress(container.getRouterHost(), container.getMappedPort(3301)),

src/test/java/io/tarantool/driver/integration/Utils.java

@@ -15,6 +15,8 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -103,4 +105,26 @@ private static long crc32(byte[] data) {
         crc32 = Integer.reverse(crc32); // result reflect
         return crc32 & 0x00000000ffffffffL; // the unsigned java problem
     }
+
+    /**
+     * Converts a byte array to a list of bytes
+     *
+     * @param bytes byte array
+     */
+    static List<Byte> convertBytesToByteList(byte[] bytes) {
+        return IntStream.range(0, bytes.length).mapToObj(i -> bytes[i]).collect(Collectors.toList());
+    }
+
+    /**
+     * Find the rootmost non-null cause of an Exception recursively
+     *
+     * @param t exception
+     * @return root cause of the exception or the exception itself
+     */
+    static Throwable getRootCause(Throwable t) {
+        while (t.getCause() != null) {
+            t = t.getCause();
+        }
+        return t;
+    }
 }

src/test/java/io/tarantool/driver/integration/ssl/SslClientITEnterprise.java

@@ -9,7 +9,6 @@
 import io.tarantool.driver.api.TarantoolResult;
 import io.tarantool.driver.api.tuple.TarantoolTuple;
 import io.tarantool.driver.exceptions.TarantoolClientException;
-import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
@@ -119,7 +118,6 @@ public void test_clientWithSsl_shouldWork() throws SSLException {
         assertEquals("test", result.get(0));
     }
 
-    @NotNull
     private static SslContext getSslContext() throws SSLException {
         return SslContextBuilder.forClient()
             .trustManager(InsecureTrustManagerFactory.INSTANCE)

src/test/java/io/tarantool/driver/integration/ssl/SslClientMTlsITEnterprise.java

@@ -9,7 +9,6 @@
 import io.tarantool.driver.api.TarantoolResult;
 import io.tarantool.driver.api.tuple.TarantoolTuple;
 import io.tarantool.driver.exceptions.TarantoolClientException;
-import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
@@ -104,7 +103,6 @@ public void test_clientWithoutCA_shouldThrowException_ifServerWithMTLS() throws
         assertThrows(CompletionException.class, () -> clientWithSsl.eval("return 'test'").join());
     }
 
-    @NotNull
     private static SslContext getSslContextWithCA() throws Exception {
         ClassLoader classloader = Thread.currentThread().getContextClassLoader();
         final File keyCertChainFile = new File(classloader