public Builder setLineNumber(long value) {

        lineNumber_ = value;
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
<pre>
The line number in `file_name` where the function call appears.
</pre>

<code>int64 line_number = 4;</code>

@param value The lineNumber to set.
@return This builder for chaining.
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/StackTrace.java