[Wisp] fix testcases related to trace

Summary: as title

Testing: vmTestbase/nsk/monitoring/ThreadMXBean/

Reviewers: yulei, shuangheng

Issue: #952

CR: #953

Author: jia-wei-tang

test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/thread/SleepingThread.java

@@ -35,6 +35,7 @@ public class SleepingThread extends RecursiveMonitoringThread {
         private volatile boolean sleeping = false;
         private Object readyLock = new Object();
         private static final String[] expectedMethods = {
+                "java.lang.Thread.sleep0",
                 "java.lang.Thread.sleep",
                 "nsk.monitoring.share.thread.SleepingThread.runInside"
         };