diff --git a/src/org/atriasoft/ejson/Ejson.java b/src/org/atriasoft/ejson/Ejson.java
index b83ecfa..607c1d0 100644
--- a/src/org/atriasoft/ejson/Ejson.java
+++ b/src/org/atriasoft/ejson/Ejson.java
@@ -52,7 +52,6 @@ public class Ejson {
 		final byte[] elemData = Uri.getAllData(data);
 		if (elemData == null) {
 			Log.error("Can not read the Stream : " + data);
-			Log.displayBackTrace();
 			return null;
 		}
 		final String dataToParse = new String(elemData);
diff --git a/src/org/atriasoft/ejson/internal/Log.java b/src/org/atriasoft/ejson/internal/Log.java
index fdd8958..5b2e2e9 100644
--- a/src/org/atriasoft/ejson/internal/Log.java
+++ b/src/org/atriasoft/ejson/internal/Log.java
@@ -9,6 +9,7 @@ import io.scenarium.logger.LogLevel;
 import io.scenarium.logger.Logger;
 
 public class Log {
+	private static final boolean FORCE_ALL = false;
 	private static final String LIB_NAME = "ejson";
 	private static final String LIB_NAME_DRAW = Logger.getDrawableName(Log.LIB_NAME);
 	private static final boolean PRINT_CRITICAL = Logger.getNeedPrint(Log.LIB_NAME, LogLevel.CRITICAL);
@@ -20,62 +21,58 @@ public class Log {
 	private static final boolean PRINT_VERBOSE = Logger.getNeedPrint(Log.LIB_NAME, LogLevel.VERBOSE);
 	private static final boolean PRINT_WARNING = Logger.getNeedPrint(Log.LIB_NAME, LogLevel.WARNING);
 	
-	public static void critical(final String data) {
-		if (Log.PRINT_CRITICAL) {
-			Logger.critical(Log.LIB_NAME_DRAW, data);
-		}
-	}
-	
-	public static void critical(final String data, final Exception e) {
+	public static void critical(final Exception e, final String data) {
 		e.printStackTrace();
-		if (Log.PRINT_CRITICAL) {
-			Logger.critical(Log.LIB_NAME_DRAW, data + " : " + e.getMessage());
+		if (PRINT_CRITICAL || FORCE_ALL) {
+			Logger.critical(LIB_NAME_DRAW, data + " : " + e.getMessage());
 		}
 	}
 	
-	public static void debug(final String data) {
-		if (Log.PRINT_DEBUG) {
-			Logger.debug(Log.LIB_NAME_DRAW, data);
+	public static void critical(final String data, final Object... objects) {
+		if (PRINT_CRITICAL || FORCE_ALL) {
+			Logger.critical(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void displayBackTrace() {
-		Logger.displayBackTrace(Log.LIB_NAME_DRAW);
-	}
-	
-	public static void error(final String data) {
-		if (Log.PRINT_ERROR) {
-			Logger.error(Log.LIB_NAME_DRAW, data);
+	public static void debug(final String data, final Object... objects) {
+		if (PRINT_DEBUG || FORCE_ALL) {
+			Logger.debug(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void info(final String data) {
-		if (Log.PRINT_INFO) {
-			Logger.info(Log.LIB_NAME_DRAW, data);
+	public static void error(final String data, final Object... objects) {
+		if (PRINT_ERROR || FORCE_ALL) {
+			Logger.error(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void print(final String data) {
-		if (Log.PRINT_PRINT) {
-			Logger.print(Log.LIB_NAME_DRAW, data);
+	public static void info(final String data, final Object... objects) {
+		if (PRINT_INFO || FORCE_ALL) {
+			Logger.info(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void todo(final String data) {
-		if (Log.PRINT_TODO) {
-			Logger.todo(Log.LIB_NAME_DRAW, data);
+	public static void print(final String data, final Object... objects) {
+		if (PRINT_PRINT || FORCE_ALL) {
+			Logger.print(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void verbose(final String data) {
-		if (Log.PRINT_VERBOSE) {
-			Logger.verbose(Log.LIB_NAME_DRAW, data);
+	public static void todo(final String data, final Object... objects) {
+		if (PRINT_TODO || FORCE_ALL) {
+			Logger.todo(LIB_NAME_DRAW, data, objects);
 		}
 	}
 	
-	public static void warning(final String data) {
-		if (Log.PRINT_WARNING) {
-			Logger.warning(Log.LIB_NAME_DRAW, data);
+	public static void verbose(final String data, final Object... objects) {
+		if (PRINT_VERBOSE || FORCE_ALL) {
+			Logger.verbose(LIB_NAME_DRAW, data, objects);
+		}
+	}
+	
+	public static void warning(final String data, final Object... objects) {
+		if (PRINT_WARNING || FORCE_ALL) {
+			Logger.warning(LIB_NAME_DRAW, data, objects);
 		}
 	}