Avoid possible NullPointerException

Resolves: rhbz#1993889

0001-Avoid-NPE.patch

@@ -0,0 +1,26 @@
+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

jansi.spec

@@ -2,7 +2,7 @@
 
 Name:             jansi
 Version:          2.3.3
-Release:          3%{?dist}
+Release:          4%{?dist}
 Summary:          Generate and interpret ANSI escape sequences in Java
 License:          ASL 2.0
 URL:              http://fusesource.github.io/jansi/
@@ -15,6 +15,8 @@ Source1:          generate-tarball.sh
 # Change the location of the native artifact to where Fedora wants it
 Patch0:           %{name}-jni.patch
 
+Patch1:           0001-Avoid-NPE.patch
+
 BuildRequires:    gcc
 BuildRequires:    maven-local
 %if %{with bootstrap}
@@ -101,6 +103,10 @@ cp -p src/main/native/libjansi.so %{buildroot}%{_libdir}/%{name}
 %license license.txt
 
 %changelog
+* Wed Aug 18 2021 Marian Koncek <mkoncek@redhat.com> - 2.3.3-4
+- Avoid possible NullPointerException
+- Resolves: rhbz#1993889
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 2.3.3-3
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688