feat: migrate from google-http-client-jackson2 to google-http-client-gson (#2471)

* chore: test gson compatibility

* chore: update imports in samples

* chore: fix lint

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: Neenu1995

google-cloud-bigquery/pom.xml

@@ -27,7 +27,7 @@
     </dependency>
     <dependency>
       <groupId>com.google.http-client</groupId>
-      <artifactId>google-http-client-jackson2</artifactId>
+      <artifactId>google-http-client-gson</artifactId>
     </dependency>
     <dependency>
       <groupId>com.google.cloud</groupId>

google-cloud-bigquery/src/benchmark/java/com/google/cloud/bigquery/benchmark/Benchmark.java

@@ -16,7 +16,7 @@
 
 package com.google.cloud.bigquery.benchmark;
 
-import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.json.gson.GsonFactory;
 import com.google.cloud.bigquery.BigQuery;
 import com.google.cloud.bigquery.BigQueryOptions;
 import com.google.cloud.bigquery.FieldValue;
@@ -40,7 +40,7 @@ public static void main(String[] args) throws Exception {
       return;
     }
     String[] requests =
-        new JacksonFactory()
+        new GsonFactory()
             .createJsonParser(new FileInputStream(args[0]))
             .parseAndClose(String[].class);
 

google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/spi/v2/HttpBigQueryRpc.java

@@ -30,7 +30,7 @@
 import com.google.api.client.http.HttpTransport;
 import com.google.api.client.http.json.JsonHttpContent;
 import com.google.api.client.json.JsonFactory;
-import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.json.gson.GsonFactory;
 import com.google.api.core.InternalApi;
 import com.google.api.core.InternalExtensionOnly;
 import com.google.api.services.bigquery.Bigquery;
@@ -105,7 +105,7 @@ public HttpBigQueryRpc(BigQueryOptions options) {
     HttpRequestInitializer initializer = transportOptions.getHttpRequestInitializer(options);
     this.options = options;
     bigquery =
-        new Bigquery.Builder(transport, new JacksonFactory(), initializer)
+        new Bigquery.Builder(transport, new GsonFactory(), initializer)
             .setRootUrl(options.getHost())
             .setApplicationName(options.getApplicationName())
             .build();

samples/snippets/src/main/java/com/example/bigquery/AuthUserFlow.java

@@ -24,7 +24,7 @@
 import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
 import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
 import com.google.api.client.json.JsonFactory;
-import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.json.gson.GsonFactory;
 import com.google.api.client.util.store.FileDataStoreFactory;
 import com.google.api.gax.paging.Page;
 import com.google.auth.oauth2.GoogleCredentials;
@@ -49,7 +49,7 @@ public class AuthUserFlow {
 
   private static final File DATA_STORE_DIR =
       new File(AuthUserFlow.class.getResource("/").getPath(), "credentials");
-  private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
+  private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();
   // i.e redirect_uri http://localhost:61984/Callback
   private static final int LOCAL_RECEIVER_PORT = 61984;
 

samples/snippets/src/main/java/com/example/bigquery/AuthUserQuery.java

@@ -24,7 +24,7 @@
 import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
 import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
 import com.google.api.client.json.JsonFactory;
-import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.json.gson.GsonFactory;
 import com.google.api.client.util.store.FileDataStoreFactory;
 import com.google.auth.oauth2.GoogleCredentials;
 import com.google.auth.oauth2.UserCredentials;
@@ -49,7 +49,7 @@ public class AuthUserQuery {
 
   private static final File DATA_STORE_DIR =
       new File(AuthUserQuery.class.getResource("/").getPath(), "credentials");
-  private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
+  private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();
   // i.e redirect_uri http://localhost:61984/Callback
   private static final int LOCAL_RECEIVER_PORT = 61984;