From d94c5832e14504d44abeba47866dfa7dac5992b5 Mon Sep 17 00:00:00 2001
From: Guillaume Nodet <gnodet@gmail.com>
Date: Fri, 23 Jul 2021 09:22:19 +0200
Subject: [PATCH] Avoid possible NPE, fixes #214

---
 src/main/java/org/fusesource/jansi/AnsiPrintStream.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/fusesource/jansi/AnsiPrintStream.java b/src/main/java/org/fusesource/jansi/AnsiPrintStream.java
index e153c43..df6e5a6 100644
--- a/src/main/java/org/fusesource/jansi/AnsiPrintStream.java
+++ b/src/main/java/org/fusesource/jansi/AnsiPrintStream.java
@@ -76,7 +76,11 @@ public void install() throws IOException {
     }
 
     public void uninstall() throws IOException {
-        getOut().uninstall();
+        // If the system output stream has been closed, out should be null, so avoid a NPE
+        AnsiOutputStream out = getOut();
+        if (out != null) {
+            out.uninstall();
+        }
     }
 
     @Override