test/lib/jdk/test/lib/Platform.java

*** 193,10 ***
--- 193,14 ---
  
      public static boolean isARM() {
          return isArch("arm.*");
      }
  
+     public static boolean isRISCV64() {
+         return isArch("riscv64");
+     }
+ 
      public static boolean isPPC() {
          return isArch("ppc.*");
      }
  
      // Returns true for IBM z System running linux.