diff --git a/libraries/pom.xml b/libraries/pom.xml
index 51c79ef0dd..48a4ecd330 100644
--- a/libraries/pom.xml
+++ b/libraries/pom.xml
@@ -226,10 +226,6 @@
 					<artifactId>commons-logging</artifactId>
 					<groupId>commons-logging</groupId>
 				</exclusion>
-				<exclusion>
-					<groupId>org.slf4j</groupId>
-					<artifactId>slf4j-log4j12</artifactId>
-				</exclusion>
 			</exclusions>
 		</dependency>
 		<dependency>
@@ -241,10 +237,6 @@
 					<artifactId>commons-logging</artifactId>
 					<groupId>commons-logging</groupId>
 				</exclusion>
-				<exclusion>
-					<groupId>org.slf4j</groupId>
-					<artifactId>slf4j-log4j12</artifactId>
-				</exclusion>
 			</exclusions>
 		</dependency>
 		<dependency>
@@ -252,12 +244,6 @@
 			<artifactId>flink-test-utils_2.10</artifactId>
 			<version>${flink.version}</version>
 			<scope>test</scope>
-			<exclusions>
-				<exclusion>
-					<groupId>org.slf4j</groupId>
-					<artifactId>slf4j-log4j12</artifactId>
-				</exclusion>
-			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.commons</groupId>
diff --git a/libraries/src/test/java/com/baeldung/jcache/SimpleCacheEntryListener.java b/libraries/src/main/java/com/baeldung/jcache/SimpleCacheEntryListener.java
similarity index 100%
rename from libraries/src/test/java/com/baeldung/jcache/SimpleCacheEntryListener.java
rename to libraries/src/main/java/com/baeldung/jcache/SimpleCacheEntryListener.java
diff --git a/libraries/src/test/java/com/baeldung/jcache/SimpleCacheLoader.java b/libraries/src/main/java/com/baeldung/jcache/SimpleCacheLoader.java
similarity index 100%
rename from libraries/src/test/java/com/baeldung/jcache/SimpleCacheLoader.java
rename to libraries/src/main/java/com/baeldung/jcache/SimpleCacheLoader.java
diff --git a/libraries/src/test/java/com/baeldung/jcache/SimpleEntryProcessor.java b/libraries/src/main/java/com/baeldung/jcache/SimpleEntryProcessor.java
similarity index 100%
rename from libraries/src/test/java/com/baeldung/jcache/SimpleEntryProcessor.java
rename to libraries/src/main/java/com/baeldung/jcache/SimpleEntryProcessor.java