public Builder addErrorLogEntries(
        int index, com.google.cloud.storagebatchoperations.v1.ErrorLogEntry value) {
      if (errorLogEntriesBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureErrorLogEntriesIsMutable();
        errorLogEntries_.add(index, value);
        onChanged();
      } else {
        errorLogEntriesBuilder_.addMessage(index, value);
      }
      return this;
    }
<pre>
Required. Sample error logs.
</pre>

<code>
repeated .google.cloud.storagebatchoperations.v1.ErrorLogEntry error_log_entries = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/ErrorSummary.java