<div>Executing both of the following rules causes an NPE in RuleTerminalNode.java:</div><div><br></div><div>rule "addSet"</div><div>no-loop true</div><div>when</div><div> $ms: MySet()</div><div>then</div><div>
modify( $ms ){ add( "three", "four" ) }</div><div> insert( new MySet( "x", "y" ) );</div><div>end</div><div><br></div><div>rule "xySet"</div><div>no-loop true</div>
<div>when</div><div> $ms: MySet()</div><div>then</div><div> modify( $ms ){ add( "z" ) }</div><div>end</div><div><br></div><div><div>import java.util.*;</div><div>public class MySet {</div><div> Set<String> set = new HashSet<>();</div>
<div> public MySet( String... strings ){</div><div> add( strings );</div><div> }</div><div> public void add( String... strings ){</div><div> for( String s: strings ){</div><div> set.add( s );</div>
<div><span class="Apple-tab-span" style="white-space:pre">        </span>}</div><div> }</div><div>}</div><div><br></div></div><div>-W</div><div><br></div>