public Builder setServiceAccount(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      principalCase_ = 2;
      principal_ = value;
      onChanged();
      return this;
    }
<pre>
The service account which needs to be granted the permission.
</pre>

<code>string service_account = 2;</code>

@param value The serviceAccount to set.
@return This builder for chaining.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/Principal.java