diff --git a/NGCC/resources/log4j2.properties b/NGCC/resources/log4j2.properties
new file mode 100644
index 0000000..ac18c1e
--- /dev/null
+++ b/NGCC/resources/log4j2.properties
@@ -0,0 +1,38 @@
+#status = error
+#dest = err
+#name = PropertiesConfig
+# 
+#property.filename = target/rolling/rollingtest.log
+# 
+#filter.threshold.type = ThresholdFilter
+#filter.threshold.level = debug
+# 
+#appender.console.type = Console
+#appender.console.name = STDOUT
+#appender.console.layout.type = PatternLayout
+#appender.console.layout.pattern = %m%n
+#appender.console.filter.threshold.type = ThresholdFilter
+#appender.console.filter.threshold.level = error
+# 
+#appender.rolling.type = RollingFile
+#appender.rolling.name = RollingFile
+#appender.rolling.fileName = ${filename}
+#appender.rolling.filePattern = target/rolling2/test1-%d{MM-dd-yy-HH-mm-ss}-%i.log.gz
+#appender.rolling.layout.type = PatternLayout
+#appender.rolling.layout.pattern = %d %p %C{1.} [%t] %m%n
+#appender.rolling.policies.type = Policies
+#appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
+#appender.rolling.policies.time.interval = 2
+#appender.rolling.policies.time.modulate = true
+#appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
+#appender.rolling.policies.size.size=100MB
+#appender.rolling.strategy.type = DefaultRolloverStrategy
+#appender.rolling.strategy.max = 5
+# 
+#logger.rolling.name = com.example.my.app
+#logger.rolling.level = debug
+#logger.rolling.additivity = false
+#logger.rolling.appenderRef.rolling.ref = RollingFile
+# 
+#rootLogger.level = info
+#rootLogger.appenderRef.stdout.ref = STDOUT
\ No newline at end of file
diff --git a/NGCC/src/Exec.java b/NGCC/src/Exec.java
index 64378e4..2ba7802 100644
--- a/NGCC/src/Exec.java
+++ b/NGCC/src/Exec.java
@@ -1,4 +1,4 @@
-import java.util.concurrent.Callable;
+ import java.util.concurrent.Callable;
 
 import commands.Analyse;
 import commands.Build;
diff --git a/NGCC/src/commands/Read.java b/NGCC/src/commands/Read.java
index 7f1943b..38d89c2 100644
--- a/NGCC/src/commands/Read.java
+++ b/NGCC/src/commands/Read.java
@@ -92,7 +92,6 @@ public class Read implements Callable <Void> {
 //***************************************************
 		
 			
-			
 			System.out.println("\nRead mode activated ...\n");		   // Debug des paramètres à exploiter plus tard
 			System.out.println("Update : "+step               +"\n"+
 							   "Verbose : "+vb_level            +"\n"+
diff --git a/NGCC/tests/log4j/TestLog4j.java b/NGCC/tests/log4j/TestLog4j.java
new file mode 100644
index 0000000..e803230
--- /dev/null
+++ b/NGCC/tests/log4j/TestLog4j.java
@@ -0,0 +1,23 @@
+package log4j;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.junit.jupiter.api.Test;
+
+class TestLog4j {
+
+	 
+	 private static Logger logger = LogManager.getLogger();
+
+	  public static void main(String[] args) {
+	    logger.debug("msg de debogage");
+	    logger.info("msg d'information");
+	    logger.warn("msg d'avertissement");
+	    logger.error("msg d'erreur");
+	    logger.fatal("msg d'erreur fatale");   
+	  }
+
+}