BigQuery: BigQuery.getTable(TableId) throws NullPointerException when TableId contains an empty table name.

[srgrr]

Environment details

1. API: google-cloud-bigquery
2. OS type and version: macOS 10.14.6
3. Java version: 1.8.0_221
4. google-cloud-java version(s): 1.91.0

More precisely, the only google-related dependency included in my pom.xml is the following:

    <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-bigquery</artifactId>
      <version>1.91.0</version>
    </dependency>

Steps to reproduce

1. Include this in your pom.xml:

    <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-bigquery</artifactId>
      <version>1.91.0</version>
    </dependency>

2. Adapt and run this code:

import com.google.auth.Credentials;
import com.google.auth.oauth2.ServiceAccountCredentials;
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Table;
import com.google.cloud.bigquery.TableId;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class Main {

  private static final String CREDENTIALS_PATH = "/Users/sergiorodriguez/key.json";
  private static final String PROJECT_ID = "streamsets-engineering";
  private static final String DATASET_NAME = "sergio_dataset";
  // Will throw NullPointerException if empty, and specific error if not empty
  private static final String TABLE_NAME = "";

  private Credentials getCredentials(String path) throws IOException {
    File credentialsFile = new File(path);
    return ServiceAccountCredentials.fromStream(new FileInputStream(credentialsFile));
  }

  private Main() throws IOException {
    Credentials credentials = getCredentials(CREDENTIALS_PATH);
    BigQueryOptions options = BigQueryOptions.newBuilder()
                                             .setCredentials(credentials)
                                             .setProjectId(PROJECT_ID)
                                             .build();
    BigQuery bigQuery = options.getService();
    TableId tableId = TableId.of(DATASET_NAME, TABLE_NAME);
    Table table = bigQuery.getTable(tableId);
    System.out.println(table);
  }

  public static void main(String[] args) throws IOException {
    new Main();
  }
}

Stack trace

Exception in thread "main" java.lang.NullPointerException
	at com.google.cloud.bigquery.TableId.fromPb(TableId.java:108)
	at com.google.cloud.bigquery.TableInfo$BuilderImpl.<init>(TableInfo.java:174)
	at com.google.cloud.bigquery.Table.fromPb(Table.java:624)
	at com.google.cloud.bigquery.BigQueryImpl.getTable(BigQueryImpl.java:677)
	at es.sergiorgs.Main.<init>(Main.java:51)
	at es.sergiorgs.Main.main(Main.java:56)

Any additional information below

If TABLE_NAME is not empty then it works as expected (i.e: specific, expected responses for invalid table names, returning null when table does not exist and so on).

It feels very similar to #3982 . However, this issue appears as fixed.