diff --git a/core/commons/che-core-commons-lang/pom.xml b/core/commons/che-core-commons-lang/pom.xml
index 3a51d58245..f30359e71a 100644
--- a/core/commons/che-core-commons-lang/pom.xml
+++ b/core/commons/che-core-commons-lang/pom.xml
@@ -42,7 +42,11 @@
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
         </dependency>
-        <!-- Test dependencies -->
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
diff --git a/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalCallable.java b/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalCallable.java
index 15deb314e0..bc64cf9064 100644
--- a/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalCallable.java
+++ b/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalCallable.java
@@ -43,6 +43,11 @@ class CopyThreadLocalCallable<T> implements Callable<T> {
     }
   }
 
+  @Override
+  public String toString() {
+    return "CopyThreadLocalCallable{ " + wrapped.toString() + " }";
+  }
+
   public Callable<? extends T> getWrapped() {
     return wrapped;
   }
diff --git a/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalRunnable.java b/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalRunnable.java
index 3d1bd04601..afc4ea915c 100644
--- a/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalRunnable.java
+++ b/core/commons/che-core-commons-lang/src/main/java/org/eclipse/che/commons/lang/concurrent/CopyThreadLocalRunnable.java
@@ -42,6 +42,11 @@ class CopyThreadLocalRunnable implements Runnable {
     }
   }
 
+  @Override
+  public String toString() {
+    return "CopyThreadLocalRunnable{ " + wrapped.toString() + " }";
+  }
+
   public Runnable getWrapped() {
     return wrapped;
   }