private com.google.protobuf.SingleFieldBuilderV3<
            com.google.devtools.cloudtrace.v2.StackTrace.StackFrames,
            com.google.devtools.cloudtrace.v2.StackTrace.StackFrames.Builder,
            com.google.devtools.cloudtrace.v2.StackTrace.StackFramesOrBuilder>
        getStackFramesFieldBuilder() {
      if (stackFramesBuilder_ == null) {
        stackFramesBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.devtools.cloudtrace.v2.StackTrace.StackFrames,
                com.google.devtools.cloudtrace.v2.StackTrace.StackFrames.Builder,
                com.google.devtools.cloudtrace.v2.StackTrace.StackFramesOrBuilder>(
                getStackFrames(), getParentForChildren(), isClean());
        stackFrames_ = null;
      }
      return stackFramesBuilder_;
    }
<pre>
Stack frames in this stack trace. A maximum of 128 frames are allowed.
</pre>

<code>.google.devtools.cloudtrace.v2.StackTrace.StackFrames stack_frames = 1;</code>
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/StackTrace.java