diff --git a/se-commons-logging/src/main/java/de/se_rwth/commons/logging/Log.java b/se-commons-logging/src/main/java/de/se_rwth/commons/logging/Log.java
index a2ddce4..b00f0a7 100755
--- a/se-commons-logging/src/main/java/de/se_rwth/commons/logging/Log.java
+++ b/se-commons-logging/src/main/java/de/se_rwth/commons/logging/Log.java
@@ -6,6 +6,7 @@
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.function.Supplier;
 
 /**
  * Provides a centralized logging component. Subclasses may provide customized
@@ -202,6 +203,25 @@ protected void doTrace(String msg, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level TRACE.
+   *
+   * @param msg     the trace message
+   * @param logName the log name to use
+   */
+  public static final void trace(Supplier<String> msg, String logName) {
+    getLog().doTrace(msg, logName);
+  }
+
+  /**
+   * Log to the specified log with level TRACE.
+   */
+  protected void doTrace(Supplier<String> msg, String logName) {
+    if (doIsTraceEnabled(logName)) {
+      doTrace(msg.get(), logName);
+    }
+  }
+
   /**
    * Log to the specified log name with level TRACE.
    *
@@ -223,6 +243,26 @@ protected void doTrace(String msg, Throwable t, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level TRACE.
+   *
+   * @param msg     the trace message
+   * @param t       the exception to log
+   * @param logName the log name to use
+   */
+  public static final void trace(Supplier<String> msg, Throwable t, String logName) {
+    getLog().doTrace(msg, t, logName);
+  }
+
+  /**
+   * Log to the specified log with level TRACE.<br>
+   */
+  protected void doTrace(Supplier<String> msg, Throwable t, String logName) {
+    if (doIsTraceEnabled(logName)) {
+      doTrace(msg.get(), t, logName);
+    }
+  }
+
   /**
    * Is level DEBUG enabled for the given log name?
    *
@@ -260,6 +300,25 @@ protected void doDebug(String msg, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level DEBUG.
+   *
+   * @param msg     the debug message
+   * @param logName the log name to use
+   */
+  public static final void debug(Supplier<String> msg, String logName) {
+    getLog().doDebug(msg, logName);
+  }
+
+  /**
+   * Log to the specified log with level DEBUG.
+   */
+  protected void doDebug(Supplier<String> msg, String logName) {
+    if (doIsDebugEnabled(logName)) {
+      doDebug(msg.get(), logName);
+    }
+  }
+
   public static final void debug(String msg, SourcePosition pos, String logName) {
     getLog().doDebug(msg, pos, logName);
   }
@@ -270,6 +329,16 @@ protected void doDebug(String msg, SourcePosition pos, String logName) {
     }
   }
 
+  public static final void debug(Supplier<String> msg, SourcePosition pos, String logName) {
+    getLog().doDebug(msg, pos, logName);
+  }
+
+  protected void doDebug(Supplier<String> msg, SourcePosition pos, String logName) {
+    if (doIsDebugEnabled(logName)) {
+      doDebug(msg.get(), pos, logName);
+    }
+  }
+
   public static final void debug(String msg, SourcePosition start, SourcePosition end, String logName) {
     getLog().doDebug(msg, start, end, logName);
   }
@@ -280,6 +349,16 @@ protected void doDebug(String msg, SourcePosition start, SourcePosition end, Str
     }
   }
 
+  public static final void debug(Supplier<String> msg, SourcePosition start, SourcePosition end, String logName) {
+    getLog().doDebug(msg, start, end, logName);
+  }
+
+  protected void doDebug(Supplier<String> msg, SourcePosition start, SourcePosition end, String logName) {
+    if (doIsDebugEnabled(logName)) {
+      doDebug(msg.get(), start, end, logName);
+    }
+  }
+
   /**
    * Log to the specified log name with level DEBUG.
    *
@@ -301,6 +380,26 @@ protected void doDebug(String msg, Throwable t, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level DEBUG.
+   *
+   * @param msg     the debug message
+   * @param t       the exception to log
+   * @param logName the log name to use
+   */
+  public static final void debug(Supplier<String> msg, Throwable t, String logName) {
+    getLog().doDebug(msg, t, logName);
+  }
+
+  /**
+   * Log to the specified log with level DEBUG.
+   */
+  protected void doDebug(Supplier<String> msg, Throwable t, String logName) {
+    if (doIsDebugEnabled(logName)) {
+      doDebug(msg.get(), t, logName);
+    }
+  }
+
   /**
    * Is level INFO enabled for the given log name?
    *
@@ -338,6 +437,25 @@ protected void doInfo(String msg, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level INFO.
+   *
+   * @param msg     the info message
+   * @param logName the log name to use
+   */
+  public static final void info(Supplier<String> msg, String logName) {
+    getLog().doInfo(msg, logName);
+  }
+
+  /**
+   * Log to the specified log with level INFO.
+   */
+  protected void doInfo(Supplier<String> msg, String logName) {
+    if (doIsInfoEnabled(logName)) {
+      doInfo(msg.get(), logName);
+    }
+  }
+
   /**
    * Log to the specified log name with level INFO.
    *
@@ -359,6 +477,26 @@ protected void doInfo(String msg, Throwable t, String logName) {
     }
   }
 
+  /**
+   * Log to the specified log name with level INFO.
+   *
+   * @param msg     the info message
+   * @param t       the exception to log
+   * @param logName the log name to use
+   */
+  public static final void info(Supplier<String> msg, Throwable t, String logName) {
+    getLog().doInfo(msg, t, logName);
+  }
+
+  /**
+   * Log to the specified log with level INFO.
+   */
+  protected void doInfo(Supplier<String> msg, Throwable t, String logName) {
+    if (doIsInfoEnabled(logName)) {
+      doInfo(msg.get(), t, logName);
+    }
+  }
+
   /**
    * Log with level WARN.
    *