Account for GoogleJsonResponseException#getDetails returning null

Apparently, this can happen

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=223163802

java/google/registry/bigquery/BigqueryConnection.java

@@ -676,7 +676,7 @@ public class BigqueryConnection implements AutoCloseable {
       bigquery.datasets().get(getProjectId(), datasetName).execute();
       return true;
     } catch (GoogleJsonResponseException e) {
-      if (e.getDetails().getCode() == 404) {
+      if (e.getDetails() != null && e.getDetails().getCode() == 404) {
         return false;
       }
       throw e;
@@ -689,7 +689,7 @@ public class BigqueryConnection implements AutoCloseable {
       bigquery.tables().get(getProjectId(), datasetName, tableName).execute();
       return true;
     } catch (GoogleJsonResponseException e) {
-      if (e.getDetails().getCode() == 404) {
+      if (e.getDetails() != null && e.getDetails().getCode() == 404) {
         return false;
       }
       throw e;

java/google/registry/bigquery/BigqueryJobFailureException.java

@@ -30,15 +30,20 @@ public final class BigqueryJobFailureException extends RuntimeException {
   /** Delegate {@link IOException} errors, checking for {@link GoogleJsonResponseException} */
   public static BigqueryJobFailureException create(IOException cause) {
     if (cause instanceof GoogleJsonResponseException) {
-      return create(((GoogleJsonResponseException) cause).getDetails());
+        return create((GoogleJsonResponseException) cause);
     } else {
       return new BigqueryJobFailureException(cause.getMessage(), cause, null, null);
     }
   }
 
   /** Create an error for JSON server response errors. */
-  public static BigqueryJobFailureException create(GoogleJsonError error) {
+  public static BigqueryJobFailureException create(GoogleJsonResponseException cause) {
-    return new BigqueryJobFailureException(error.getMessage(), null, null, error);
+    GoogleJsonError err = cause.getDetails();
+    if (err != null) {
+      return new BigqueryJobFailureException(err.getMessage(), null, null, err);
+    } else {
+      return new BigqueryJobFailureException(cause.getMessage(), cause, null, null);
+    }
   }
 
   /** Create an error from a failed job. */

java/google/registry/dns/writer/clouddns/CloudDnsWriter.java

@@ -19,7 +19,7 @@ import static com.google.common.collect.ImmutableSet.toImmutableSet;
 import static google.registry.model.EppResourceUtils.loadByForeignKey;
 import static google.registry.util.DomainNameUtils.getSecondLevelDomain;
 
-import com.google.api.client.googleapis.json.GoogleJsonError.ErrorInfo;
+import com.google.api.client.googleapis.json.GoogleJsonError;
 import com.google.api.client.googleapis.json.GoogleJsonResponseException;
 import com.google.api.services.dns.Dns;
 import com.google.api.services.dns.model.Change;
@@ -390,12 +390,12 @@ public class CloudDnsWriter extends BaseDnsWriter {
     try {
       dnsConnection.changes().create(projectId, zoneName, change).execute();
     } catch (GoogleJsonResponseException e) {
-      List<ErrorInfo> errors = e.getDetails().getErrors();
+      GoogleJsonError err = e.getDetails();
       // We did something really wrong here, just give up and re-throw
-      if (errors.size() > 1) {
+      if (err == null || err.getErrors().size() > 1) {
         throw new RuntimeException(e);
       }
-      String errorReason = errors.get(0).getReason();
+      String errorReason = err.getErrors().get(0).getReason();
 
       if (RETRYABLE_EXCEPTION_REASONS.contains(errorReason)) {
         throw new ZoneStateException(errorReason);

java/google/registry/export/UpdateSnapshotViewAction.java

@@ -138,7 +138,7 @@ public class UpdateSnapshotViewAction implements Runnable {
           .update(ref.getProjectId(), ref.getDatasetId(), ref.getTableId(), table)
           .execute();
     } catch (GoogleJsonResponseException e) {
-      if (e.getDetails().getCode() == 404) {
+      if (e.getDetails() != null && e.getDetails().getCode() == 404) {
         bigquery.tables().insert(ref.getProjectId(), ref.getDatasetId(), table).execute();
       } else {
         logger.atWarning().withCause(e).log(

java/google/registry/groups/DirectoryGroupsConnection.java

@@ -95,7 +95,9 @@ public class DirectoryGroupsConnection implements GroupsConnection {
       // If the member is already in the group, ignore the error, get the existing member, and
       // return it.
       GoogleJsonError err = e.getDetails();
-      if (err.getCode() == SC_NOT_FOUND && err.getMessage().equals(GROUP_NOT_FOUND_MSG)) {
+      if (err == null) {
+        throw e;
+      } else if (err.getCode() == SC_NOT_FOUND && err.getMessage().equals(GROUP_NOT_FOUND_MSG)) {
         logger.atInfo().withCause(e).log(
             "Creating group %s during addition of member %s because the group doesn't exist.",
             groupKey, email);
@@ -169,7 +171,8 @@ public class DirectoryGroupsConnection implements GroupsConnection {
       return createdGroup;
     } catch (GoogleJsonResponseException e) {
       // Ignore the error thrown if the group already exists.
-      if (e.getDetails().getCode() == SC_CONFLICT
+      if (e.getDetails() != null
+          && e.getDetails().getCode() == SC_CONFLICT
           && e.getDetails().getMessage().equals("Entity already exists.")) {
         logger.atInfo().withCause(e).log(
             "Could not create group %s because it already exists.", groupKey);
@@ -204,7 +207,8 @@ public class DirectoryGroupsConnection implements GroupsConnection {
           "%s is a member of the group %s. Got reply: %s", memberEmail, groupKey, getReply);
       return true;
     } catch (GoogleJsonResponseException e) {
-      if (ERROR_MESSAGES_MEMBER_NOT_FOUND.contains(e.getDetails().getMessage())) {
+      if (e.getDetails() != null
+          && ERROR_MESSAGES_MEMBER_NOT_FOUND.contains(e.getDetails().getMessage())) {
         // This means the "get" request failed because the email wasn't part of the group.
         // This is expected behavior for any visitor that isn't a support group member.
         logger.atInfo().log(