Add javadoc, make checkstyle happy

Author: mziccard

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryError.java

@@ -8,7 +8,8 @@
 import java.util.Objects;
 
 /**
- * Google Cloud BigQuery error.
+ * Google Cloud BigQuery Job Error. Objects of this class represent errors occurred during the
+ * execution of a BigQuery Job.
  */
 public class BigQueryError implements Serializable {
 
@@ -50,8 +51,8 @@ public ErrorProto apply(BigQueryError error) {
   /**
    * Returns short error code that summarizes the error.
    *
-   * @see <a href="https://cloud.google.com/bigquery/troubleshooting-errors">
-   *     Troubleshooting Errors</a>
+   * @see <a href="https://cloud.google.com/bigquery/troubleshooting-errors">Troubleshooting
+   *     Errors</a>
    */
   public String reason() {
     return reason;

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/CopyJobInfo.java

@@ -168,7 +168,7 @@ public Builder toBuilder() {
   }
 
   @Override
-  protected MoreObjects.ToStringHelper toStringHelper() {
+  MoreObjects.ToStringHelper toStringHelper() {
     return super.toStringHelper()
         .add("sourceTables", sourceTables)
         .add("destinationTable", destinationTable)

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/ExtractJobInfo.java

@@ -200,7 +200,7 @@ public Builder toBuilder() {
   }
 
   @Override
-  public MoreObjects.ToStringHelper toStringHelper() {
+  MoreObjects.ToStringHelper toStringHelper() {
     return super.toStringHelper()
         .add("sourceTable", sourceTable)
         .add("destinationUris", destinationUris)

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/JobInfo.java

@@ -29,6 +29,8 @@
  * copies an existing table. Use {@link ExtractJobInfo} for a job that exports a table to Google
  * Cloud Storage. Use {@link LoadJobInfo} for a job that loads data from Google Cloud Storage into
  * a table. Use {@link QueryJobInfo} for a job that runs a query.
+ *
+ * @see <a href="https://cloud.google.com/bigquery/docs/reference/v2/jobs">Jobs</a>
  */
 public abstract class JobInfo<S extends JobStatistics> implements Serializable {
 
@@ -226,7 +228,7 @@ public String userEmail() {
    */
   public abstract Builder toBuilder();
 
-  protected MoreObjects.ToStringHelper toStringHelper() {
+  MoreObjects.ToStringHelper toStringHelper() {
     return MoreObjects.toStringHelper(this)
         .add("jobId", jobId)
         .add("status", status)

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/LoadJobInfo.java

@@ -320,7 +320,7 @@ public Builder toBuilder() {
   }
 
   @Override
-  protected MoreObjects.ToStringHelper toStringHelper() {
+  MoreObjects.ToStringHelper toStringHelper() {
     return super.toStringHelper()
         .add("destinationTable", destinationTable)
         .add("sourceUris", sourceUris)

gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/QueryJobInfo.java

@@ -415,7 +415,7 @@ public Builder toBuilder() {
   }
 
   @Override
-  protected MoreObjects.ToStringHelper toStringHelper() {
+  MoreObjects.ToStringHelper toStringHelper() {
     return super.toStringHelper()
         .add("query", query)
         .add("destinationTable", destinationTable)

gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/BigQueryErrorTest.java

@@ -1,9 +1,9 @@
 package com.google.gcloud.bigquery;
 
-import org.junit.Test;
-
 import static org.junit.Assert.assertEquals;
 
+import org.junit.Test;
+
 public class BigQueryErrorTest {
 
   private static final String REASON = "reason";

gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/ExtractJobInfoTest.java

@@ -21,8 +21,6 @@
 import static org.junit.Assert.assertNull;
 
 import com.google.common.collect.ImmutableList;
-import com.google.gcloud.bigquery.JobInfo.CreateDisposition;
-import com.google.gcloud.bigquery.JobInfo.WriteDisposition;
 import com.google.gcloud.bigquery.JobStatistics.ExtractStatistics;
 
 import org.junit.Test;

gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/JobStatusTest.java

@@ -27,8 +27,8 @@
 public class JobStatusTest {
 
   private static final JobStatus.State STATE = JobStatus.State.DONE;
-  private static final BigQueryError ERROR = new BigQueryError("reason", "location", "message",
-      "debugInfo");
+  private static final BigQueryError ERROR =
+      new BigQueryError("reason", "location", "message", "debugInfo");
   private static final List<BigQueryError> ALL_ERRORS = ImmutableList.of(
       new BigQueryError("reason1", "location1", "message1", "debugInfo1"),
       new BigQueryError("reason2", "location2", "message2", "debugInfo2"));

gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/QueryJobInfoTest.java

@@ -24,9 +24,9 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.gcloud.bigquery.JobInfo.CreateDisposition;
+import com.google.gcloud.bigquery.JobInfo.WriteDisposition;
 import com.google.gcloud.bigquery.JobStatistics.QueryStatistics;
 import com.google.gcloud.bigquery.QueryJobInfo.Priority;
-import com.google.gcloud.bigquery.JobInfo.WriteDisposition;
 
 import org.junit.Test;
 
@@ -74,10 +74,10 @@ public class QueryJobInfoTest {
   private static final CreateDisposition CREATE_DISPOSITION = CreateDisposition.CREATE_IF_NEEDED;
   private static final WriteDisposition WRITE_DISPOSITION = WriteDisposition.WRITE_APPEND;
   private static final Priority PRIORITY = Priority.BATCH;
-  private static boolean ALLOW_LARGE_RESULTS = true;
-  private static boolean USE_QUERY_CACHE = false;
-  private static boolean FLATTEN_RESULTS = true;
-  private static List<UserDefinedFunction> USER_DEFINED_FUNCTIONS = ImmutableList.of(
+  private static final boolean ALLOW_LARGE_RESULTS = true;
+  private static final boolean USE_QUERY_CACHE = false;
+  private static final boolean FLATTEN_RESULTS = true;
+  private static final List<UserDefinedFunction> USER_DEFINED_FUNCTIONS = ImmutableList.of(
       UserDefinedFunction.inline("Function"), UserDefinedFunction.fromUri("URI"));
   private static final JobId JOB_ID = JobId.of("job");
   private static final JobStatus JOB_STATUS = new JobStatus(JobStatus.State.DONE);
@@ -90,7 +90,7 @@ public class QueryJobInfoTest {
       .cacheHit(false)
       .billingTier(42)
       .build();
-  private static QueryJobInfo QUERY_JOB = QueryJobInfo.builder(QUERY)
+  private static final QueryJobInfo QUERY_JOB = QueryJobInfo.builder(QUERY)
       .etag(ETAG)
       .id(ID)
       .selfLink(SELF_LINK)