diff --git a/easy-rules/pom.xml b/easy-rules/pom.xml
deleted file mode 100644
index b74b16f34c..0000000000
--- a/easy-rules/pom.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-
- 4.0.0
- com.baeldung.easyrules
- easy-rules
- 1.0.0-SNAPSHOT
-
-
-
- org.jeasy
- easy-rules-core
- 3.0.0
-
-
-
\ No newline at end of file
diff --git a/easy-rules/src/main/java/com/baeldung/easyrules/HelloWorldRule.java b/easy-rules/src/main/java/com/baeldung/easyrules/HelloWorldRule.java
deleted file mode 100644
index 5448eabf2a..0000000000
--- a/easy-rules/src/main/java/com/baeldung/easyrules/HelloWorldRule.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.baeldung.easyrules;
-
-import org.jeasy.rules.annotation.Action;
-import org.jeasy.rules.annotation.Condition;
-import org.jeasy.rules.annotation.Rule;
-
-@Rule(name = "Hello World rule", description = "Always say hello world")
-public class HelloWorldRule {
-
- @Condition
- public boolean when() {
- return true;
- }
-
- @Action
- public void then() throws Exception {
- System.out.println("hello world");
- }
-
-}
diff --git a/easy-rules/src/main/java/com/baeldung/easyrules/Launcher.java b/easy-rules/src/main/java/com/baeldung/easyrules/Launcher.java
deleted file mode 100644
index 427e3eace0..0000000000
--- a/easy-rules/src/main/java/com/baeldung/easyrules/Launcher.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.baeldung.easyrules;
-
-import org.jeasy.rules.api.Facts;
-import org.jeasy.rules.api.Rules;
-import org.jeasy.rules.api.RulesEngine;
-import org.jeasy.rules.core.DefaultRulesEngine;
-
-public class Launcher {
- public static void main(String... args) {
- // create facts
- Facts facts = new Facts();
-
- // create rules
- Rules rules = new Rules();
- rules.register(new HelloWorldRule());
-
- // create a rules engine and fire rules on known facts
- RulesEngine rulesEngine = new DefaultRulesEngine();
- rulesEngine.fire(rules, facts);
- }
-}
diff --git a/openl-tablets/pom.xml b/openl-tablets/pom.xml
deleted file mode 100644
index 77b9f47b38..0000000000
--- a/openl-tablets/pom.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-
- 4.0.0
- com.baeldung.openltablets
- openl-tablets
- 0.0.1-SNAPSHOT
-
- UTF-8
- UTF-8
- 1.8
-
-
-
- org.openl
- org.openl.core
- 5.19.4
-
-
- org.openl.rules
- org.openl.rules
- 5.19.4
-
-
-
\ No newline at end of file
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/model/Case.java b/openl-tablets/src/main/java/com/baeldung/openltablets/model/Case.java
deleted file mode 100644
index f9f5f4bd5f..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/model/Case.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.baeldung.openltablets.model;
-
-public class Case {
-
- private User user;
- private int hourOfDay;
-
- public User getUser() {
- return user;
- }
-
- public void setUser(final User user) {
- this.user = user;
- }
-
- public int getHourOfDay() {
- return hourOfDay;
- }
-
- public void setHourOfDay(final int hourOfDay) {
- this.hourOfDay = hourOfDay;
- }
-}
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/model/Greeting.java b/openl-tablets/src/main/java/com/baeldung/openltablets/model/Greeting.java
deleted file mode 100644
index 5dc7bcd117..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/model/Greeting.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.baeldung.openltablets.model;
-
-public enum Greeting {
-
- GOOD_MORNING("Good Morning"),
- GOOD_AFTERNOON("Good Afternoon"),
- GOOD_EVENING("Good Evening"),
- GOOD_NIGHT("Good Night");
-
- private final String literal;
-
- private Greeting(final String literal) {
- this.literal = literal;
- }
-
- public String getLiteral() {
- return literal;
- }
-
-}
\ No newline at end of file
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/model/User.java b/openl-tablets/src/main/java/com/baeldung/openltablets/model/User.java
deleted file mode 100644
index 8e45487497..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/model/User.java
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.baeldung.openltablets.model;
-
-public class User {
-
- private String name;
-
- public String getName() {
- return name;
- }
-
- public void setName(final String name) {
- this.name = name;
- }
-}
\ No newline at end of file
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/IRule.java b/openl-tablets/src/main/java/com/baeldung/openltablets/rules/IRule.java
deleted file mode 100644
index 857a6433ef..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/IRule.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.baeldung.openltablets.rules;
-
-import com.baeldung.openltablets.model.Case;
-
-public interface IRule {
- void helloUser(final Case aCase, final Response response);
-}
\ No newline at end of file
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Main.java b/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Main.java
deleted file mode 100644
index 34f5c48ed1..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Main.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.baeldung.openltablets.rules;
-
-
-import java.time.LocalDateTime;
-
-import org.openl.rules.runtime.RulesEngineFactory;
-import org.openl.runtime.EngineFactory;
-
-import com.baeldung.openltablets.model.Case;
-import com.baeldung.openltablets.model.User;
-
-public class Main {
- private IRule instance;
-
- public static void main(String[] args) {
- Main rules = new Main();
- User user = new User();
- user.setName("Donald Duck");
- Case aCase = new Case();
- aCase.setUser(user);
- aCase.setHourOfDay(23);
- rules.process(aCase);
- }
-
- public void process(Case aCase) {
- final EngineFactory engineFactory = new RulesEngineFactory(getClass().getClassLoader()
- .getResource("openltablets/HelloUser.xls"), IRule.class);
- instance = engineFactory.newEngineInstance();
- instance.helloUser(aCase, new Response());
- }
-}
diff --git a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Response.java b/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Response.java
deleted file mode 100644
index 27fa634866..0000000000
--- a/openl-tablets/src/main/java/com/baeldung/openltablets/rules/Response.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.baeldung.openltablets.rules;
-
-import java.util.HashMap;
-import java.util.Map;
-
-public class Response {
- private String result;
- private Map map = new HashMap<>();
-
- public Response() { }
-
- public String getResult() {
- return result;
- }
-
- public void setResult(final String s) {
- result = s;
- }
-
- public Map getMap() {
- return map;
- }
-
-}
diff --git a/openl-tablets/src/main/resources/openltablets/HelloUser.xls b/openl-tablets/src/main/resources/openltablets/HelloUser.xls
deleted file mode 100644
index 1e85d0ce2d..0000000000
Binary files a/openl-tablets/src/main/resources/openltablets/HelloUser.xls and /dev/null differ
diff --git a/rulebook/pom.xml b/rulebook/pom.xml
deleted file mode 100644
index 2a42e36d93..0000000000
--- a/rulebook/pom.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-
- 4.0.0
- com.baeldung.rulebook
- rulebook
- 1.0.0-SNAPSHOT
-
-
-
- com.deliveredtechnologies
- rulebook-core
- 0.6.2
-
-
-
\ No newline at end of file
diff --git a/rulebook/src/main/java/com/baeldung/rulebook/HelloWorldRule.java b/rulebook/src/main/java/com/baeldung/rulebook/HelloWorldRule.java
deleted file mode 100644
index c09772a3c6..0000000000
--- a/rulebook/src/main/java/com/baeldung/rulebook/HelloWorldRule.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.baeldung.rulebook;
-
-import com.deliveredtechnologies.rulebook.lang.RuleBookBuilder;
-import com.deliveredtechnologies.rulebook.model.RuleBook;
-
-public class HelloWorldRule {
- public RuleBook