potential NPE fix

ctongfei · Apr 12, 2020 · 4684ee4 · 4684ee4
1 parent 1dbaf8b
commit 4684ee4
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/main/java/me/tongfei/progressbar/TerminalUtils.java b/src/main/java/me/tongfei/progressbar/TerminalUtils.java
@@ -49,8 +49,10 @@ synchronized public static boolean cursorMovementSupport() {
 
     synchronized static void closeTerminal() {
         try {
-            terminal.close();
-            terminal = null;
+            if (terminal != null) {
+                terminal.close();
+                terminal = null;
+            }
         } catch (IOException ignored) { /* noop */ }
     }