src/java.base/windows/native/libjava/Console_md.c

@@ -55,10 +55,12 @@
 {
     char buf[64];
     int cp = GetConsoleCP();
     if (cp >= 874 && cp <= 950)
         sprintf(buf, "ms%d", cp);
+    else if (cp == 65001)
+        sprintf(buf, "UTF-8");
     else
         sprintf(buf, "cp%d", cp);
     return JNU_NewStringPlatform(env, buf);
 }