diff --git a/src/fr/devinsy/statoolinfos/crawl/CrawlJournalFile.java b/src/fr/devinsy/statoolinfos/crawl/CrawlJournalFile.java
index 4839954..8e7ec70 100644
--- a/src/fr/devinsy/statoolinfos/crawl/CrawlJournalFile.java
+++ b/src/fr/devinsy/statoolinfos/crawl/CrawlJournalFile.java
@@ -161,7 +161,7 @@ public class CrawlJournalFile
         PrintWriter out = null;
         try
         {
-            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
+            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
             write(out, source);
         }
         finally
diff --git a/src/fr/devinsy/statoolinfos/htmlize/EditoPage.java b/src/fr/devinsy/statoolinfos/htmlize/EditoPage.java
index 4cb54ae..a3b4bf7 100644
--- a/src/fr/devinsy/statoolinfos/htmlize/EditoPage.java
+++ b/src/fr/devinsy/statoolinfos/htmlize/EditoPage.java
@@ -69,7 +69,7 @@ public class EditoPage
                 FileUtils.copyDirectory(editoDirectory, htmlizeDirectory);
 
                 // Load body edito xhtml file.
-                edito = FileUtils.readFileToString(editoFile, "UTF-8");
+                edito = FileUtils.readFileToString(editoFile, StandardCharsets.UTF_8);
                 edito = XidynUtils.extractBodyContent(edito);
             }
             else
diff --git a/src/fr/devinsy/statoolinfos/io/CSVWriter.java b/src/fr/devinsy/statoolinfos/io/CSVWriter.java
index 25d4544..89f1db3 100644
--- a/src/fr/devinsy/statoolinfos/io/CSVWriter.java
+++ b/src/fr/devinsy/statoolinfos/io/CSVWriter.java
@@ -25,6 +25,7 @@ import java.io.IOException;
 import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
@@ -57,7 +58,7 @@ public class CSVWriter implements SpreadsheetWriter
     public CSVWriter(final File file, final char separator) throws UnsupportedEncodingException, FileNotFoundException
     {
         this.separator = separator;
-        this.out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
+        this.out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
         this.isNewline = true;
     }
 
diff --git a/src/fr/devinsy/statoolinfos/metrics/Prober.java b/src/fr/devinsy/statoolinfos/metrics/Prober.java
index 8c4d5b2..eac5b7b 100644
--- a/src/fr/devinsy/statoolinfos/metrics/Prober.java
+++ b/src/fr/devinsy/statoolinfos/metrics/Prober.java
@@ -41,6 +41,7 @@ import fr.devinsy.statoolinfos.core.StatoolInfosUtils;
 import fr.devinsy.statoolinfos.metrics.http.HttpAccessLogAnalyzer;
 import fr.devinsy.statoolinfos.metrics.http.HttpErrorLogAnalyzer;
 import fr.devinsy.statoolinfos.metrics.minetest.MinetestProber;
+import fr.devinsy.statoolinfos.metrics.mumble.MumbleProber;
 import fr.devinsy.statoolinfos.properties.PathProperties;
 import fr.devinsy.statoolinfos.properties.PathProperty;
 import fr.devinsy.statoolinfos.properties.PathPropertyUtils;
@@ -54,8 +55,6 @@ public class Prober
 {
     private static Logger logger = LoggerFactory.getLogger(Prober.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     public static final Pattern YEAR_PATTERN = Pattern.compile("^\\d{4}$");
 
     /**
@@ -155,11 +154,11 @@ public class Prober
             if (types.containsAnyIgnoreCase("Mumble"))
             {
                 logger.info("== Processing Mumble.");
-                String source = configuration.getProbeHttpErrorLogSource();
+                String source = configuration.get("conf.probe.mumble.logs");
                 logger.info("source=[{}]", source);
 
-                // PathCounters data = HttpErrorLogAnalyzer.probe(source);
-                // counters.putAll(data);
+                PathCounters data = MumbleProber.probe(source);
+                counters.putAll(data);
             }
 
             // Filter.
diff --git a/src/fr/devinsy/statoolinfos/metrics/http/HttpAccessLogAnalyzer.java b/src/fr/devinsy/statoolinfos/metrics/http/HttpAccessLogAnalyzer.java
index c6f10ee..908a264 100644
--- a/src/fr/devinsy/statoolinfos/metrics/http/HttpAccessLogAnalyzer.java
+++ b/src/fr/devinsy/statoolinfos/metrics/http/HttpAccessLogAnalyzer.java
@@ -31,6 +31,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import fr.devinsy.statoolinfos.core.StatoolInfosException;
+import fr.devinsy.statoolinfos.metrics.IpCounters;
 import fr.devinsy.statoolinfos.metrics.PathCounters;
 import fr.devinsy.statoolinfos.util.FilesUtils;
 import fr.devinsy.statoolinfos.util.LineIterator;
@@ -42,8 +43,6 @@ public class HttpAccessLogAnalyzer
 {
     private static Logger logger = LoggerFactory.getLogger(HttpAccessLogAnalyzer.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     // log_format combined '$remote_addr - $remote_user [$time_local] '
     // '"$request" $status $body_bytes_sent '
     // '"$http_referer" "$http_user_agent"';
diff --git a/src/fr/devinsy/statoolinfos/metrics/http/HttpErrorLogAnalyzer.java b/src/fr/devinsy/statoolinfos/metrics/http/HttpErrorLogAnalyzer.java
index 8d5012f..c5e95f0 100644
--- a/src/fr/devinsy/statoolinfos/metrics/http/HttpErrorLogAnalyzer.java
+++ b/src/fr/devinsy/statoolinfos/metrics/http/HttpErrorLogAnalyzer.java
@@ -41,8 +41,6 @@ public class HttpErrorLogAnalyzer
 {
     private static Logger logger = LoggerFactory.getLogger(HttpErrorLogAnalyzer.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     public static final Pattern NGINX_ERROR_PATTERN = Pattern.compile("^(?<time>\\S+\\s\\S+)\\s\\[(?<level>[^\\]]*)\\]\\s.*$");
     public static final Pattern APACHE_ERROR_PATTERN = Pattern.compile("^\\[(?<time>[^\\]]+)\\]\\s\\[(?<level>[^\\]]*)\\]\\s(?<message>.*)$");
 
diff --git a/src/fr/devinsy/statoolinfos/metrics/http/HttpLogIterator.java b/src/fr/devinsy/statoolinfos/metrics/http/HttpLogIterator.java
index c24cb4b..210d637 100644
--- a/src/fr/devinsy/statoolinfos/metrics/http/HttpLogIterator.java
+++ b/src/fr/devinsy/statoolinfos/metrics/http/HttpLogIterator.java
@@ -33,8 +33,6 @@ public class HttpLogIterator
 {
     private static Logger logger = LoggerFactory.getLogger(HttpLogIterator.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     private long errorCount;
     private LineIterator iterator;
 
diff --git a/src/fr/devinsy/statoolinfos/metrics/http/NGinxLogAnalyzer.java b/src/fr/devinsy/statoolinfos/metrics/http/NGinxLogAnalyzer.java
index 978b1cf..1f18ad1 100644
--- a/src/fr/devinsy/statoolinfos/metrics/http/NGinxLogAnalyzer.java
+++ b/src/fr/devinsy/statoolinfos/metrics/http/NGinxLogAnalyzer.java
@@ -28,8 +28,6 @@ public class NGinxLogAnalyzer
 {
     private static Logger logger = LoggerFactory.getLogger(NGinxLogAnalyzer.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     /**
      * Instantiates a new n ginx log analyzer.
      */
diff --git a/src/fr/devinsy/statoolinfos/properties/PathPropertyUtils.java b/src/fr/devinsy/statoolinfos/properties/PathPropertyUtils.java
index c0cb72e..d6b0ca2 100644
--- a/src/fr/devinsy/statoolinfos/properties/PathPropertyUtils.java
+++ b/src/fr/devinsy/statoolinfos/properties/PathPropertyUtils.java
@@ -289,7 +289,7 @@ public class PathPropertyUtils
         PrintWriter out = null;
         try
         {
-            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
+            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
             write(out, source);
         }
         finally
diff --git a/src/fr/devinsy/statoolinfos/uptime/UptimeJournalFile.java b/src/fr/devinsy/statoolinfos/uptime/UptimeJournalFile.java
index d789de1..e4c9ac8 100644
--- a/src/fr/devinsy/statoolinfos/uptime/UptimeJournalFile.java
+++ b/src/fr/devinsy/statoolinfos/uptime/UptimeJournalFile.java
@@ -158,7 +158,7 @@ public class UptimeJournalFile
         PrintWriter out = null;
         try
         {
-            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
+            out = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
             write(out, source);
         }
         finally
diff --git a/src/fr/devinsy/statoolinfos/util/LineIterator.java b/src/fr/devinsy/statoolinfos/util/LineIterator.java
index eeacb60..e55ff3a 100644
--- a/src/fr/devinsy/statoolinfos/util/LineIterator.java
+++ b/src/fr/devinsy/statoolinfos/util/LineIterator.java
@@ -23,6 +23,7 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
 import java.util.zip.GZIPInputStream;
 
 import org.apache.commons.io.IOUtils;
@@ -36,8 +37,6 @@ public class LineIterator
 {
     private static Logger logger = LoggerFactory.getLogger(LineIterator.class);
 
-    public static final String DEFAULT_CHARSET_NAME = "UTF-8";
-
     private BufferedReader in;
     private String nextLine;
     private boolean ready;
@@ -58,7 +57,7 @@ public class LineIterator
         }
         else
         {
-            this.in = new BufferedReader(new InputStreamReader(new FileInputStream(source), DEFAULT_CHARSET_NAME));
+            this.in = new BufferedReader(new InputStreamReader(new FileInputStream(source), StandardCharsets.UTF_8));
         }
 
         this.nextLine = null;