@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + PROJECT_ID_FIELD_NUMBER;
    hash = (53 * hash) + getProjectId().hashCode();
    hash = (37 * hash) + TRACE_ID_FIELD_NUMBER;
    hash = (53 * hash) + getTraceId().hashCode();
    if (getSpansCount() > 0) {
      hash = (37 * hash) + SPANS_FIELD_NUMBER;
      hash = (53 * hash) + getSpansList().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Collection of spans in the trace.
</pre>

<code>repeated .google.devtools.cloudtrace.v1.TraceSpan spans = 3;</code>
java-trace/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/Trace.java