--- old/test/hotspot/jtreg/gc/shenandoah/TestObjItrWithHeapDump.java	2020-04-04 02:23:23.562286266 +0200
+++ new/test/hotspot/jtreg/gc/shenandoah/TestObjItrWithHeapDump.java	2020-04-04 02:23:23.452287283 +0200
@@ -58,6 +58,7 @@
 
         String[][][] modeHeuristics = new String[][][] {
              {{"normal"},    {"adaptive", "compact", "static", "aggressive"}},
+             {{"iu"}, {"adaptive", "aggressive"}},
              {{"passive"},   {"passive"}}
         };