--- old/src/jdk.jconsole/share/classes/sun/tools/jconsole/ThreadTab.java	2018-12-06 17:53:49.757660718 -0500
+++ new/src/jdk.jconsole/share/classes/sun/tools/jconsole/ThreadTab.java	2018-12-06 17:53:49.585659865 -0500
@@ -665,7 +665,7 @@
         }
 
         public void focusLost(FocusEvent e) {
-            if (promptRemoved && getText().equals("")) {
+            if (promptRemoved && getText().isEmpty()) {
                 setText(prompt);
                 setForeground(Color.gray);
                 promptRemoved = false;