#743 - Fix issue with ElasticSearch nested path query with multiple nested path expressions

src/main/java/com/avaje/ebeaninternal/server/expression/DefaultExampleExpression.java

@@ -109,6 +109,11 @@ public class DefaultExampleExpression implements SpiExpression, ExampleExpressio
     return new DefaultExampleExpression(list);
   }
 
+  @Override
+  public String nestedPath(BeanDescriptor<?> desc) {
+    return null;
+  }
+
   @Override
   public void containsMany(BeanDescriptor<?> desc, ManyWhereJoins whereManyJoins) {
     list = buildExpressions(desc);