diff -r 0981099a3e54 -r f850b9d09c91 jdk/test/java/lang/ProcessHandle/JavaChild.java
--- a/jdk/test/java/lang/ProcessHandle/JavaChild.java	Thu Jul 09 10:37:07 2015 +0300
+++ b/jdk/test/java/lang/ProcessHandle/JavaChild.java	Thu Jul 09 09:55:36 2015 -0400
@@ -281,12 +281,12 @@
                         sendResult(action, Integer.toString(millis));
                         break;
                     case "cpuloop":
-                        long times = Long.valueOf(args[nextArg++]);
-                        Instant end = Instant.now().plusMillis(times);
-                        while (Instant.now().isBefore(end)) {
-                            // burn the cpu til the time is up
+                        long cpuMillis = Long.valueOf(args[nextArg++]);
+                        long cpuTarget = getCpuTime() + cpuMillis * 1_000_000L;
+                        while (getCpuTime() < cpuTarget) {
+                            // burn the cpu until the time is up
                         }
-                        sendResult(action, times);
+                        sendResult(action, cpuMillis);
                         break;
                     case "cputime":
                         sendResult(action, getCpuTime());