diff --git a/core-java-modules/core-java-lambdas/src/main/java/com/baeldung/lambdas/LambdaVariables.java b/core-java-modules/core-java-lambdas/src/main/java/com/baeldung/lambdas/LambdaVariables.java
deleted file mode 100644
index 5c1201150f..0000000000
--- a/core-java-modules/core-java-lambdas/src/main/java/com/baeldung/lambdas/LambdaVariables.java
+++ /dev/null
@@ -1,88 +0,0 @@
-package com.baeldung.lambdas;
-
-import java.util.Random;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.function.Supplier;
-import java.util.stream.IntStream;
-
-/**
- * Class with examples about working with capturing lambdas.
- */
-public class LambdaVariables {
-
-    private volatile boolean run = true;
-    private int start = 0;
-
-    private ExecutorService executor = Executors.newFixedThreadPool(3);
-
-    public static void main(String[] args) {
-        new LambdaVariables().localVariableMultithreading();
-    }
-
-    Supplier<Integer> incrementer(int start) {
-        return () -> start; // can't modify start parameter inside the lambda
-    }
-
-    Supplier<Integer> incrementer() {
-        return () -> start++;
-    }
-
-    public void localVariableMultithreading() {
-        boolean run = true;
-        executor.execute(() -> {
-            while (run) {
-                // do operation
-            }
-        });
-        // commented because it doesn't compile, it's just an example of non-final local variables in lambdas
-        // run = false;
-    }
-
-    public void instanceVariableMultithreading() {
-        executor.execute(() -> {
-            while (run) {
-                // do operation
-            }
-        });
-
-        run = false;
-    }
-
-    /**
-     * WARNING: always avoid this workaround!!
-     */
-    public void workaroundSingleThread() {
-        int[] holder = new int[] { 2 };
-        IntStream sums = IntStream
-          .of(1, 2, 3)
-          .map(val -> val + holder[0]);
-
-        holder[0] = 0;
-
-        System.out.println(sums.sum());
-    }
-
-    /**
-     * WARNING: always avoid this workaround!!
-     */
-    public void workaroundMultithreading() {
-        int[] holder = new int[] { 2 };
-        Runnable runnable = () -> System.out.println(IntStream
-          .of(1, 2, 3)
-          .map(val -> val + holder[0])
-          .sum());
-
-        new Thread(runnable).start();
-
-        // simulating some processing
-        try {
-            Thread.sleep(new Random().nextInt(3) * 1000L);
-        } catch (InterruptedException e) {
-            throw new RuntimeException(e);
-        }
-
-        holder[0] = 0;
-    }
-
-}
diff --git a/core-java-modules/core-java-lambdas/src/main/java/com/baeldung/java8/lambda/serialization/NotSerializableLambdaExpression.java b/core-java-modules/core-java-lambdas/src/main/java/com/ossez/java8/lambda/serialization/NotSerializableLambdaExpression.java
similarity index 81%
rename from core-java-modules/core-java-lambdas/src/main/java/com/baeldung/java8/lambda/serialization/NotSerializableLambdaExpression.java
rename to core-java-modules/core-java-lambdas/src/main/java/com/ossez/java8/lambda/serialization/NotSerializableLambdaExpression.java
index 38f87e4ba9..feb8224fb5 100644
--- a/core-java-modules/core-java-lambdas/src/main/java/com/baeldung/java8/lambda/serialization/NotSerializableLambdaExpression.java
+++ b/core-java-modules/core-java-lambdas/src/main/java/com/ossez/java8/lambda/serialization/NotSerializableLambdaExpression.java
@@ -1,4 +1,4 @@
-package com.baeldung.java8.lambda.serialization;
+package com.ossez.java8.lambda.serialization;
 
 public class NotSerializableLambdaExpression {
     public static Object getLambdaExpressionObject() {
diff --git a/core-java-modules/core-java-lambdas/src/test/java/com/baeldung/java8/lambda/serialization/LambdaSerializationUnitTest.java b/core-java-modules/core-java-lambdas/src/test/java/com/baeldung/java8/lambda/serialization/LambdaSerializationUnitTest.java
index bb71e3bdb9..a8991c104a 100644
--- a/core-java-modules/core-java-lambdas/src/test/java/com/baeldung/java8/lambda/serialization/LambdaSerializationUnitTest.java
+++ b/core-java-modules/core-java-lambdas/src/test/java/com/baeldung/java8/lambda/serialization/LambdaSerializationUnitTest.java
@@ -1,5 +1,6 @@
 package com.baeldung.java8.lambda.serialization;
 
+import com.ossez.java8.lambda.serialization.NotSerializableLambdaExpression;
 import org.junit.Test;
 
 import java.io.*;
diff --git a/persistence-modules/activejdbc/pom.xml b/persistence-modules/activejdbc/pom.xml
index 00290203cc..f12fddb09c 100644
--- a/persistence-modules/activejdbc/pom.xml
+++ b/persistence-modules/activejdbc/pom.xml
@@ -65,7 +65,7 @@
                     <dependency>
                         <groupId>mysql</groupId>
                         <artifactId>mysql-connector-java</artifactId>
-                        <version>${mysql.connector.version}</version>
+                        <version>${mysql-connector-j.version}</version>
                     </dependency>
                 </dependencies>
             </plugin>
@@ -75,7 +75,7 @@
     <properties>
         <activejdbc.version>3.4-j11</activejdbc.version>
         <environments>development.test,development</environments>
-        <mysql.connector.version>8.0.24</mysql.connector.version>
+        <mysql-connector-j.version>8.3.0</mysql-connector-j.version>
     </properties>
 
 </project>
\ No newline at end of file