throw real exception instead of wrapping with ClientException

Author: mzitnik

client-v2/src/main/java/com/clickhouse/client/api/Client.java

@@ -1464,7 +1464,8 @@ public CompletableFuture<InsertResponse> insert(String tableName,
                     }
                 }
             }
-            throw new ClientException("Insert request failed after attempts: " + (retries + 1) + " - Duration: " + (System.nanoTime() - startTime), lastException);
+            LOG.warn("Insert request failed after attempts: " + (retries + 1) + " - Duration: " + (System.nanoTime() - startTime));
+            throw lastException;
         };
 
         return runAsyncOperation(responseSupplier, settings.getAllSettings());
@@ -1586,8 +1587,8 @@ public CompletableFuture<QueryResponse> query(String sqlQuery, Map<String, Objec
                         }
                     }
                 }
-
-                throw new ClientException("Query request failed after attempts: " + (retries + 1) + " - Duration: " + (System.nanoTime() - startTime), lastException);
+                LOG.warn("Query request failed after attempts: " + (retries + 1) + " - Duration: " + (System.nanoTime() - startTime));
+                throw lastException;
             };
 
         return runAsyncOperation(responseSupplier, settings.getAllSettings());

client-v2/src/test/java/com/clickhouse/client/ClientTests.java

@@ -285,7 +285,7 @@ public void testWithOldDefaults() {
                 .enableConnectionPool(true)
                 .setConnectionTTL(-1, MILLIS)
                 .retryOnFailures(ClientFaultCause.NoHttpResponse, ClientFaultCause.ConnectTimeout,
-                        ClientFaultCause.ConnectionRequestTimeout)
+                        ClientFaultCause.ConnectionRequestTimeout, ClientFaultCause.ServerRetryable)
                 .setClientNetworkBufferSize(300_000)
                 .setMaxRetries(3)
                 .allowBinaryReaderToReuseBuffers(false)

client-v2/src/test/java/com/clickhouse/client/HttpTransportTests.java

@@ -1,5 +1,6 @@
 package com.clickhouse.client;
 
+import com.clickhouse.client.api.ClickHouseException;
 import com.clickhouse.client.api.Client;
 import com.clickhouse.client.api.ClientConfigProperties;
 import com.clickhouse.client.api.ClientException;