From 3dce15a3da21f5817a1b0193664312ffc8a5345c Mon Sep 17 00:00:00 2001
From: Michael Simacek <msimacek@redhat.com>
Date: Tue, 18 Apr 2017 16:30:58 +0200
Subject: [PATCH 2/4] Update to current slf4j

---
 .../src/main/java/org/slf4j/impl/MavenSimpleLogger.java            | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLogger.java b/maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLogger.java
index 17f1f48..c4acb92 100644
--- a/maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLogger.java
+++ b/maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLogger.java
@@ -56,8 +56,13 @@ public class MavenSimpleLogger
     }
 
     @Override
-    protected void renderThrowable( Throwable t, PrintStream stream )
+    protected void writeThrowable( Throwable t, PrintStream stream )
     {
+        if ( t == null )
+        {
+            return;
+        }
+
         stream.print( buffer().failure( t.getClass().getName() ) );
         if ( t.getMessage() != null )
         {
-- 
2.9.4