--- a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/JavaThread.java	Tue Nov 19 13:33:09 2019 +0900
+++ b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/JavaThread.java	Mon Nov 18 23:41:06 2019 -0500
@@ -384,14 +384,14 @@
     Address stackBase = getStackBase();
     // Be robust
     if (sp == null) return false;
-    return stackBase.greaterThanOrEqual(a) && sp.lessThanOrEqual(a);
+    return stackBase.greaterThan(a) && sp.lessThanOrEqual(a);
   }
 
   public boolean isLockOwned(Address a) {
     Address stackBase = getStackBase();
     Address stackLimit = stackBase.addOffsetTo(-getStackSize());
 
-    return stackBase.greaterThanOrEqual(a) && stackLimit.lessThanOrEqual(a);
+    return stackBase.greaterThan(a) && stackLimit.lessThanOrEqual(a);
 
     // FIXME: should traverse MonitorArray/MonitorChunks as in VM
   }