From a8b5c713a19b4dc3c6ea094933d4d57d2630e3cb Mon Sep 17 00:00:00 2001
From: Adrian Cole <adrian@jclouds.org>
Date: Wed, 6 Jun 2012 16:35:48 -0700
Subject: [PATCH] Issue 962:slf4j initializing loggers to null

---
 .../main/java/org/jclouds/logging/slf4j/SLF4JLogger.java   | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/slf4j/src/main/java/org/jclouds/logging/slf4j/SLF4JLogger.java b/drivers/slf4j/src/main/java/org/jclouds/logging/slf4j/SLF4JLogger.java
index 250f959cca..7054a70fe3 100644
--- a/drivers/slf4j/src/main/java/org/jclouds/logging/slf4j/SLF4JLogger.java
+++ b/drivers/slf4j/src/main/java/org/jclouds/logging/slf4j/SLF4JLogger.java
@@ -22,12 +22,17 @@ import org.jclouds.logging.BaseLogger;
 import org.jclouds.logging.Logger;
 
 /**
- * {@link org.apache.slf4j.Logger} implementation of {@link Logger}.
+ * {@link org.slf4j.LoggerFactory} implementation of {@link Logger}.
  * 
  * @author Adrian Cole
  * 
  */
 public class SLF4JLogger extends BaseLogger {
+   static {
+      // force initialization to avoid http://www.slf4j.org/codes.html#substituteLogger messages
+      org.slf4j.LoggerFactory.getILoggerFactory();
+   }
+   
    private final org.slf4j.Logger logger;
    private final String category;