test/jtreg-ext/requires/VMProps.java

rev 59879 : [mq]: 8249000

*** 266,291 ****
--- 266,310 ----
       */
      protected String cpuFeatures() {
          return CPUInfo.getFeatures().toString();
      }
  
+     private boolean isGcSupportedByGraal(GC gc) {
+         switch (gc) {
+             case Serial:
+             case Parallel:
+             case G1:
+                 return true;
+             case Epsilon:
+             case Z:
+             case Shenandoah:
+                 return false;
+             default:
+                 throw new IllegalStateException("Unknown GC " + gc.name());
+         }
+     }
+ 
      /**
       * For all existing GC sets vm.gc.X property.
       * Example vm.gc.G1=true means:
       *    VM supports G1
       *    User either set G1 explicitely (-XX:+UseG1GC) or did not set any GC
+      *    G1 can be selected, i.e. it doesn't conflict with other VM flags
       *
       * @param map - property-value pairs
       */
      protected void vmGC(SafeMap map) {
+         var isGraalEnabled = Compiler.isGraalEnabled();
          for (GC gc: GC.values()) {
              map.put("vm.gc." + gc.name(),
                      () -> "" + (gc.isSupported()
+                             && (!isGraalEnabled || isGcSupportedByGraal(gc))
                              && (gc.isSelected() || GC.isSelectedErgonomically())));
          }
      }
  
+ 
      /**
       * Selected final flag.
       *
       * @param map - property-value pairs
       * @param flagName - flag name