diff --git a/json/pom.xml b/json/pom.xml
index eddbdee81e..3ed13d0800 100644
--- a/json/pom.xml
+++ b/json/pom.xml
@@ -29,6 +29,11 @@
             <artifactId>fastjson</artifactId>
             <version>${fastjson.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>${json.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
diff --git a/kotlin-libraries/pom.xml b/kotlin-libraries/pom.xml
index 7099166674..5fb8049a8e 100644
--- a/kotlin-libraries/pom.xml
+++ b/kotlin-libraries/pom.xml
@@ -56,7 +56,6 @@
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-runner</artifactId>
-            <version>${junit.platform.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -78,7 +77,6 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>${assertj.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -94,8 +92,7 @@
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            <version>${h2.version}</version>
-        </dependency>
+            </dependency>
         <!-- https://mvnrepository.com/artifact/io.arrow-kt/arrow-core -->
         <dependency>
             <groupId>io.arrow-kt</groupId>
@@ -125,7 +122,6 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
 
@@ -133,13 +129,11 @@
         <dependency>
             <groupId>net.bytebuddy</groupId>
             <artifactId>byte-buddy</artifactId>
-            <version>${byte-buddy.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>net.bytebuddy</groupId>
             <artifactId>byte-buddy-agent</artifactId>
-            <version>${byte-buddy.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
diff --git a/libraries-3/pom.xml b/libraries-3/pom.xml
index 214e87287d..c8980fd309 100644
--- a/libraries-3/pom.xml
+++ b/libraries-3/pom.xml
@@ -12,22 +12,6 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <repositories>
-        <repository>
-            <id>jboss-public-repository-group</id>
-            <name>JBoss Public Repository Group</name>
-            <url>http://repository.jboss.org/nexus/content/groups/public/</url>
-            <releases>
-                <enabled>true</enabled>
-                <updatePolicy>never</updatePolicy>
-            </releases>
-            <snapshots>
-                <enabled>true</enabled>
-                <updatePolicy>daily</updatePolicy>
-            </snapshots>
-        </repository>
-    </repositories>
-
     <dependencies>
         <dependency>
             <groupId>com.beust</groupId>
@@ -44,8 +28,5 @@
     <properties>
         <jcommander.version>1.78</jcommander.version>
         <lombok.version>1.18.6</lombok.version>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <maven.compiler.source>1.8</maven.compiler.source>
     </properties>
 </project>
diff --git a/libraries-apache-commons/pom.xml b/libraries-apache-commons/pom.xml
index f83a8c7304..a6dc82b479 100644
--- a/libraries-apache-commons/pom.xml
+++ b/libraries-apache-commons/pom.xml
@@ -48,15 +48,10 @@
             <version>${common-math3.version}</version>
         </dependency>
         <dependency>
-            <groupId>commons-net</groupId>
-            <artifactId>commons-net</artifactId>
-            <version>${commons-net.version}</version>
-        </dependency>
-		<dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
             <version>${h2.version}</version>
-        </dependency>
+        </dependency>        
         <dependency>
             <groupId>org.knowm.xchart</groupId>
             <artifactId>xchart</artifactId>
@@ -71,9 +66,7 @@
         <commons-chain.version>1.2</commons-chain.version>
         <assertj.version>3.6.2</assertj.version>
         <commons.dbutils.version>1.6</commons.dbutils.version>
-        <commons-codec-version>1.10.L001</commons-codec-version>
         <xchart-version>3.5.2</xchart-version>
-        <commons-net.version>3.6</commons-net.version>
         <common-math3.version>3.6.1</common-math3.version>
     </properties>
 
diff --git a/libraries-data-2/pom.xml b/libraries-data-2/pom.xml
index e79a2d98e0..00c6f1b4fc 100644
--- a/libraries-data-2/pom.xml
+++ b/libraries-data-2/pom.xml
@@ -87,11 +87,6 @@
             <artifactId>spring-web</artifactId>
             <version>${spring.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.google.api-client</groupId>
-            <artifactId>google-api-client</artifactId>
-            <version>${google-api.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.googlecode.jmapper-framework</groupId>
             <artifactId>jmapper-core</artifactId>
@@ -153,7 +148,6 @@
         <infinispan.version>9.1.5.Final</infinispan.version>
         <jackson.version>2.9.8</jackson.version>
         <spring.version>4.3.8.RELEASE</spring.version>
-        <google-api.version>1.23.0</google-api.version>
         <jmapper.version>1.6.0.1</jmapper.version>
         <suanshu.version>4.0.0</suanshu.version>
         <derive4j.version>1.1.0</derive4j.version>
diff --git a/libraries-data-db/pom.xml b/libraries-data-db/pom.xml
index 185f23124d..767b8b79ba 100644
--- a/libraries-data-db/pom.xml
+++ b/libraries-data-db/pom.xml
@@ -54,21 +54,11 @@
             <artifactId>datanucleus-maven-plugin</artifactId>
             <version>${datanucleus-maven-plugin.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.datanucleus</groupId>
-            <artifactId>datanucleus-xml</artifactId>
-            <version>${datanucleus-xml.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.datanucleus</groupId>
             <artifactId>datanucleus-jdo-query</artifactId>
             <version>${datanucleus-jdo-query.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>${slf4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
@@ -218,10 +208,8 @@
         <ormlite.version>5.0</ormlite.version>
         <datanucleus.version>5.1.1</datanucleus.version>
         <datanucleus-maven-plugin.version>5.0.2</datanucleus-maven-plugin.version>
-        <datanucleus-xml.version>5.0.0-release</datanucleus-xml.version>
         <datanucleus-jdo-query.version>5.0.4</datanucleus-jdo-query.version>
         <javax.jdo.version>3.2.0-m7</javax.jdo.version>
-        <slf4j.version>1.7.25</slf4j.version>
         <HikariCP.version>2.7.2</HikariCP.version>
         <ebean.version>11.22.4</ebean.version>
     </properties>
diff --git a/libraries-data-io/pom.xml b/libraries-data-io/pom.xml
index 0e3029f565..dcc8fee3ad 100644
--- a/libraries-data-io/pom.xml
+++ b/libraries-data-io/pom.xml
@@ -35,11 +35,6 @@
             <version>${opencsv.version}</version>
         </dependency>
         <!-- google api -->
-        <dependency>
-            <groupId>com.google.api-client</groupId>
-            <artifactId>google-api-client</artifactId>
-            <version>${google-api.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.google.oauth-client</groupId>
             <artifactId>google-oauth-client-jetty</artifactId>
diff --git a/libraries-data/pom.xml b/libraries-data/pom.xml
index 8e5360dea3..6f9b6388fc 100644
--- a/libraries-data/pom.xml
+++ b/libraries-data/pom.xml
@@ -13,11 +13,6 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <version>${h2.version}</version>
-        </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
@@ -29,17 +24,6 @@
             <artifactId>kafka-streams</artifactId>
             <version>${kafka.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.kafka</groupId>
-            <artifactId>kafka-clients</artifactId>
-            <version>${kafka.version}</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.slf4j</groupId>
-                    <artifactId>slf4j-log4j12</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
         <dependency>
             <groupId>org.apache.kafka</groupId>
             <artifactId>kafka-clients</artifactId>
@@ -57,11 +41,6 @@
             <artifactId>ignite-spring-data</artifactId>
             <version>${ignite.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.ignite</groupId>
-            <artifactId>ignite-indexing</artifactId>
-            <version>${ignite.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
@@ -116,59 +95,17 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        <dependency>
-            <groupId>org.apache.flink</groupId>
-            <artifactId>flink-connector-kafka-0.11_2.11</artifactId>
-            <version>${flink.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.flink</groupId>
-            <artifactId>flink-streaming-java_2.11</artifactId>
-            <version>${flink.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.datatype</groupId>
-            <artifactId>jackson-datatype-jsr310</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.flink</groupId>
-            <artifactId>flink-core</artifactId>
-            <version>${flink.version}</version>
-            <exclusions>
-                <exclusion>
-                    <artifactId>commons-logging</artifactId>
-                    <groupId>commons-logging</groupId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.flink</groupId>
-            <artifactId>flink-java</artifactId>
-            <version>${flink.version}</version>
-            <exclusions>
-                <exclusion>
-                    <artifactId>commons-logging</artifactId>
-                    <groupId>commons-logging</groupId>
-                </exclusion>
-            </exclusions>
-        </dependency>
         <dependency>
             <groupId>org.apache.flink</groupId>
             <artifactId>flink-test-utils_2.11</artifactId>
             <version>${flink.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-            <version>${assertj.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
@@ -189,22 +126,6 @@
                 </exclusion>
             </exclusions>
         </dependency>
-
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-core</artifactId>
-            <version>${logback.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>${slf4j.version}</version>
-        </dependency>
     </dependencies>
 
     <build>
@@ -243,14 +164,10 @@
         <gson.version>2.8.2</gson.version>
         <cache.version>1.1.0</cache.version>
         <flink.version>1.5.0</flink.version>
-        <assertj.version>3.6.2</assertj.version>
         <hazelcast.version>3.8.4</hazelcast.version>
-        <maven-antrun-plugin.version>1.8</maven-antrun-plugin.version>
-        <build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
         <org.apache.crunch.crunch-core.version>0.15.0</org.apache.crunch.crunch-core.version>
         <org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client> 
         <slf4j.version>1.7.25</slf4j.version>
-        <logback.version>1.0.1</logback.version>          
     </properties>
 
 </project>
diff --git a/libraries-http/pom.xml b/libraries-http/pom.xml
index 44280d848c..86f5390c3a 100644
--- a/libraries-http/pom.xml
+++ b/libraries-http/pom.xml
@@ -38,11 +38,6 @@
             <artifactId>google-http-client-jackson2</artifactId>
             <version>${googleclient.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.google.http-client</groupId>
-            <artifactId>google-http-client-gson</artifactId>
-            <version>${googleclient.version}</version>
-        </dependency>
 
 		<!-- Retrofit -->
 		<dependency>
diff --git a/libraries-primitive/pom.xml b/libraries-primitive/pom.xml
index 30f683a544..9eecda2a22 100644
--- a/libraries-primitive/pom.xml
+++ b/libraries-primitive/pom.xml
@@ -13,43 +13,42 @@
         <dependency>
             <groupId>it.unimi.dsi</groupId>
             <artifactId>fastutil</artifactId>
-            <version>8.2.2</version>
+            <version>${fastutil.version}</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/junit/junit -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.openjdk.jmh/jmh-core -->
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-core</artifactId>
-            <version>1.19</version>
+            <version>${jmh.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-generator-annprocess</artifactId>
-            <version>1.19</version>
+            <version>${jmh.version}</version>
             <scope>test</scope>
         </dependency>
         <!-- Eclipse Collections -->
-        <dependency>
-            <groupId>org.eclipse.collections</groupId>
-            <artifactId>eclipse-collections-api</artifactId>
-            <version>10.0.0</version>
-        </dependency>
         <dependency>
             <groupId>org.eclipse.collections</groupId>
             <artifactId>eclipse-collections</artifactId>
-            <version>10.0.0</version>
+            <version>${eclipse-collections.version}</version>
         </dependency>
     </dependencies>
 
     <properties>
+        <fastutil.version>8.2.2</fastutil.version>
+        <junit.version>4.12</junit.version>
+        <jmh.version>1.19</jmh.version>
+        <eclipse-collections.version>10.0.0</eclipse-collections.version>
         <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.target>1.8</maven.compiler.target>		
     </properties>
 </project>
\ No newline at end of file
diff --git a/libraries-security/pom.xml b/libraries-security/pom.xml
index eb16575be8..ae08de9a4d 100644
--- a/libraries-security/pom.xml
+++ b/libraries-security/pom.xml
@@ -23,12 +23,10 @@
         <dependency>
             <groupId>org.springframework.security.oauth</groupId>
             <artifactId>spring-security-oauth2</artifactId>
-            <version>${spring-security-oauth2.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
-            <version>${spring.version}</version>
         </dependency>
 
         <dependency>
@@ -55,7 +53,6 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -76,14 +73,11 @@
     </dependencies>
 
     <properties>
-        <spring-boot-maven-plugin.version>2.0.4.RELEASE</spring-boot-maven-plugin.version>
         <scribejava.version>5.6.0</scribejava.version>
-		<spring-security-oauth2.version>2.3.3.RELEASE</spring-security-oauth2.version>
 		<passay.version>1.3.1</passay.version>
         <tink.version>1.2.2</tink.version>
 		<cryptacular.version>1.2.2</cryptacular.version>
         <jasypt.version>1.9.2</jasypt.version>
         <bouncycastle.version>1.58</bouncycastle.version>
-        <spring.version>4.3.8.RELEASE</spring.version>
     </properties>
 </project>
diff --git a/libraries-server/pom.xml b/libraries-server/pom.xml
index 9bed5e211b..45069fe4f7 100644
--- a/libraries-server/pom.xml
+++ b/libraries-server/pom.xml
@@ -79,12 +79,6 @@
              <version>${smack.version}</version>
          </dependency>
 
-         <dependency>
-             <groupId>org.igniterealtime.smack</groupId>
-             <artifactId>smack-im</artifactId>
-             <version>${smack.version}</version>
-         </dependency>
-
          <dependency>
              <groupId>org.igniterealtime.smack</groupId>
              <artifactId>smack-extensions</artifactId>
@@ -116,7 +110,6 @@
         <httpclient.version>4.5.3</httpclient.version>
         <jetty.version>9.4.8.v20171121</jetty.version>
         <netty.version>4.1.20.Final</netty.version>
-        <commons.collections.version>4.1</commons.collections.version>
         <tomcat.version>8.5.24</tomcat.version>
         <smack.version>4.3.1</smack.version>
         <eclipse.paho.client.mqttv3.version>1.2.0</eclipse.paho.client.mqttv3.version>
diff --git a/libraries/pom.xml b/libraries/pom.xml
index 9511563817..7d20f1778a 100644
--- a/libraries/pom.xml
+++ b/libraries/pom.xml
@@ -52,22 +52,12 @@
             <artifactId>javatuples</artifactId>
             <version>${javatuples.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.javassist</groupId>
-            <artifactId>javassist</artifactId>
-            <version>${javaassist.version}</version>
-        </dependency>
         <!-- https://mvnrepository.com/artifact/org.assertj/assertj-core -->
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.skyscreamer</groupId>
-            <artifactId>jsonassert</artifactId>
-            <version>${jsonassert.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.javers</groupId>
             <artifactId>javers-core</artifactId>
@@ -85,22 +75,6 @@
             <artifactId>rome</artifactId>
             <version>${rome.version}</version>
         </dependency>
-        <dependency>
-            <groupId>io.specto</groupId>
-            <artifactId>hoverfly-java</artifactId>
-            <version>${hoverfly-java.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.httpcomponents</groupId>
-            <artifactId>httpclient</artifactId>
-            <version>${httpclient.version}</version>
-            <exclusions>
-                <exclusion>
-                    <artifactId>commons-logging</artifactId>
-                    <groupId>commons-logging</groupId>
-                </exclusion>
-            </exclusions>
-        </dependency>
         <dependency>
         <groupId>net.serenity-bdd</groupId>
         <artifactId>serenity-core</artifactId>
@@ -137,11 +111,6 @@
             <version>${serenity.jira.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
 
         <!-- JDO -->
         <dependency>
@@ -226,11 +195,6 @@
             <artifactId>jets3t</artifactId>
             <version>${jets3t-version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.lucee</groupId>
-            <artifactId>commons-codec</artifactId>
-            <version>${commons-codec-version}</version>
-        </dependency>
 
         <dependency>
             <groupId>io.rest-assured</groupId>
@@ -243,17 +207,6 @@
             <artifactId>multiverse-core</artifactId>
             <version>${multiverse.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.zaxxer</groupId>
-            <artifactId>HikariCP</artifactId>
-            <version>${HikariCP.version}</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <version>${h2.version}</version>
-        </dependency>
         <dependency>
             <groupId>pl.pragmatists</groupId>
             <artifactId>JUnitParams</artifactId>
@@ -280,11 +233,6 @@
             <artifactId>jmh-core</artifactId>
             <version>${jmh.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.openjdk.jmh</groupId>
-            <artifactId>jmh-generator-annprocess</artifactId>
-            <version>${jmh.version}</version>
-        </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
@@ -308,12 +256,6 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        <dependency>
-            <groupId>org.codehaus.groovy</groupId>
-            <artifactId>groovy-all</artifactId>
-            <type>pom</type>
-            <version>${groovy.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.awaitility</groupId>
             <artifactId>awaitility</artifactId>
@@ -363,17 +305,6 @@
             <version>${vavr.version}</version>
         </dependency>
 
-
-        <dependency>
-            <groupId>com.squareup.okhttp3</groupId>
-            <artifactId>logging-interceptor</artifactId>
-            <version>${logging-interceptor.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.darwinsys</groupId>
-            <artifactId>hirondelle-date4j</artifactId>
-            <version>${hirondelle-date4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.haulmont.yarg</groupId>
             <artifactId>yarg</artifactId>
@@ -394,61 +325,16 @@
             <artifactId>protonpack</artifactId>
             <version>${protonpack.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.functionaljava</groupId>
-            <artifactId>functionaljava</artifactId>
-            <version>${functionaljava.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.functionaljava</groupId>
             <artifactId>functionaljava-java8</artifactId>
             <version>${functionaljava.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.functionaljava</groupId>
-            <artifactId>functionaljava-quickcheck</artifactId>
-            <version>${functionaljava.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.functionaljava</groupId>
-            <artifactId>functionaljava-java-core</artifactId>
-            <version>${functionaljava.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>javax.cache</groupId>
-            <artifactId>cache-api</artifactId>
-            <version>${cache.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.hazelcast</groupId>
-            <artifactId>hazelcast</artifactId>
-            <version>${hazelcast.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.jgrapht</groupId>
-            <artifactId>jgrapht-core</artifactId>
-            <version>${jgrapht.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.github.ben-manes.caffeine</groupId>
             <artifactId>caffeine</artifactId>
             <version>${caffeine.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.google.http-client</groupId>
-            <artifactId>google-http-client</artifactId>
-            <version>${googleclient.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.google.http-client</groupId>
-            <artifactId>google-http-client-jackson2</artifactId>
-            <version>${googleclient.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.google.http-client</groupId>
-            <artifactId>google-http-client-gson</artifactId>
-            <version>${googleclient.version}</version>
-        </dependency>
 
         <!--Java Docker API Client -->
         <dependency>
@@ -470,19 +356,9 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        <dependency>
-            <groupId>com.sun.jersey</groupId>
-            <artifactId>jersey-client</artifactId>
-            <version>${jersey.version}</version>
-        </dependency>
         <!--Java Docker API Client -->
 
         <!-- google api -->
-        <dependency>
-            <groupId>com.google.api-client</groupId>
-            <artifactId>google-api-client</artifactId>
-            <version>${google-api.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.google.oauth-client</groupId>
             <artifactId>google-oauth-client-jetty</artifactId>
@@ -493,17 +369,6 @@
             <artifactId>kafka-streams</artifactId>
             <version>${kafka.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.kafka</groupId>
-            <artifactId>kafka-clients</artifactId>
-            <version>${kafka.version}</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.slf4j</groupId>
-                    <artifactId>slf4j-log4j12</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
         <dependency>
             <groupId>org.apache.kafka</groupId>
             <artifactId>kafka-clients</artifactId>
@@ -533,11 +398,6 @@
             <artifactId>resilience4j-circuitbreaker</artifactId>
             <version>${resilience4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>io.github.resilience4j</groupId>
-            <artifactId>resilience4j-ratelimiter</artifactId>
-            <version>${resilience4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>io.github.resilience4j</groupId>
             <artifactId>resilience4j-bulkhead</artifactId>
@@ -548,11 +408,6 @@
             <artifactId>resilience4j-retry</artifactId>
             <version>${resilience4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>io.github.resilience4j</groupId>
-            <artifactId>resilience4j-cache</artifactId>
-            <version>${resilience4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>io.github.resilience4j</groupId>
             <artifactId>resilience4j-timelimiter</artifactId>
@@ -576,11 +431,6 @@
             <version>${mockftpserver.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.asciidoctor</groupId>
-            <artifactId>asciidoctor-maven-plugin</artifactId>
-            <version>${asciidoctor-maven-plugin.version}</version>
-        </dependency>
       	<!-- Reflections -->
 		<dependency>
 			<groupId>org.reflections</groupId>
@@ -710,19 +560,14 @@
 
     <properties>
 
-        <googleclient.version>1.23.0</googleclient.version>
         <multiverse.version>0.7.0</multiverse.version>
         <cglib.version>3.2.7</cglib.version>
         <javatuples.version>1.2</javatuples.version>
-        <javaassist.version>3.21.0-GA</javaassist.version>
         <assertj.version>3.6.2</assertj.version>
-        <jsonassert.version>1.5.0</jsonassert.version>
         <javers.version>3.1.0</javers.version>
-        <httpclient.version>4.5.3</httpclient.version>
         <jnats.version>1.0</jnats.version>
 
 
-        <httpclient.version>4.5.3</httpclient.version>
         <neuroph.version>2.92</neuroph.version>
         <serenity.version>1.9.26</serenity.version>
         <serenity.jbehave.version>1.41.0</serenity.jbehave.version>
@@ -739,29 +584,19 @@
         <eclipse-collections.version>8.2.0</eclipse-collections.version>
         <streamex.version>0.6.5</streamex.version>
         <vavr.version>0.9.0</vavr.version>
-        <geotools.version>15.2</geotools.version>
-        <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
 
-        <joda-time.version>2.10</joda-time.version>
-        <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
         <protonpack.version>1.15</protonpack.version>
-        <cache.version>1.0.0</cache.version>
-        <hazelcast.version>3.10.2</hazelcast.version>
         <caffeine.version>2.5.5</caffeine.version>
         <google-api.version>1.23.0</google-api.version>
-        <google-sheets.version>v4-rev493-1.21.0</google-sheets.version>
         <kafka.version>2.0.0</kafka.version>
         <docker.version>3.0.14</docker.version>
 
-        <jctools.version>2.1.2</jctools.version>
-        <commons-codec-version>1.10.L001</commons-codec-version>
         <jets3t-version>0.9.4.0006L</jets3t-version>
         <jctools.version>2.1.2</jctools.version>
         <typesafe-akka.version>2.5.11</typesafe-akka.version>
         <resilience4j.version>0.12.1</resilience4j.version>
         <javapoet.version>1.10.0</javapoet.version>
         <hamcrest-all.version>1.3</hamcrest-all.version>
-        <hoverfly-java.version>0.8.1</hoverfly-java.version>
         <javax.jdo.version>3.2.0-m7</javax.jdo.version>
         <datanucleus.version>5.1.1</datanucleus.version>
         <datanucleus-maven-plugin.version>5.0.2</datanucleus-maven-plugin.version>
@@ -770,26 +605,19 @@
         <chronicle.version>3.6.4</chronicle.version>
         <spring.version>4.3.8.RELEASE</spring.version>
         <spring-mock-mvc.version>3.0.3</spring-mock-mvc.version>
-        <HikariCP.version>2.6.3</HikariCP.version>
         <quartz.version>2.3.0</quartz.version>
         <jool.version>0.9.12</jool.version>
         <jmh.version>1.19</jmh.version>
-        <groovy.version>2.5.2</groovy.version>
         <noexception.version>1.1.0</noexception.version>
-        <logging-interceptor.version>3.9.0</logging-interceptor.version>
         <yarg.version>2.0.4</yarg.version>
         <mbassador.version>1.3.1</mbassador.version>
         <jdeferred.version>1.2.6</jdeferred.version>
         <functionaljava.version>4.8.1</functionaljava.version>
-        <jgrapht.version>1.0.1</jgrapht.version>
-        <jersey.version>1.19.4</jersey.version>
         <fugue.version>4.5.1</fugue.version>
-        <maven-bundle-plugin.version>3.3.0</maven-bundle-plugin.version>
         <maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
         <mockftpserver.version>2.7.1</mockftpserver.version>
         <commons-net.version>3.6</commons-net.version>
         <reflections.version>0.9.11</reflections.version>
-        <asciidoctor-maven-plugin.version>1.5.7.1</asciidoctor-maven-plugin.version>
 
     </properties>
 
diff --git a/linkrest/pom.xml b/linkrest/pom.xml
index b3d3bd374e..c40cad41c8 100644
--- a/linkrest/pom.xml
+++ b/linkrest/pom.xml
@@ -23,16 +23,6 @@
             <artifactId>jersey-container-servlet</artifactId>
             <version>${jersey.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.glassfish.jersey.media</groupId>
-            <artifactId>jersey-media-moxy</artifactId>
-            <version>${jersey.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <version>${h2.version}</version>
-        </dependency>
     </dependencies>
 
     <build>
diff --git a/lucene/pom.xml b/lucene/pom.xml
index 3d1ce61782..921832e280 100644
--- a/lucene/pom.xml
+++ b/lucene/pom.xml
@@ -32,10 +32,6 @@
     </dependencies>
 
     <properties>
-        <!-- various -->
-        <hibernate-jpa-2.1-api.version>1.0.0.Final</hibernate-jpa-2.1-api.version>
-        <!-- delombok maven plugin -->
-        <delombok-maven-plugin.version>1.16.10.0</delombok-maven-plugin.version>
         <lucene.version>7.4.0</lucene.version>
     </properties>
 
diff --git a/maven-all/maven/pom.xml b/maven-all/maven/pom.xml
index d34be04fcf..117a8a7002 100644
--- a/maven-all/maven/pom.xml
+++ b/maven-all/maven/pom.xml
@@ -1,7 +1,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>maven</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>maven</name>
@@ -307,7 +306,6 @@
         <maven.verifier.version>1.1</maven.verifier.version>
         <maven.clean.version>3.0.0</maven.clean.version>
         <maven.build.helper.version>3.0.0</maven.build.helper.version>
-        <resources.name>Baeldung</resources.name>
         <jetty.version>9.4.11.v20180605</jetty.version>
         <jersey.version>2.27</jersey.version>
     </properties>
diff --git a/maven-polyglot/maven-polyglot-json-extension/pom.xml b/maven-polyglot/maven-polyglot-json-extension/pom.xml
index 1170fe7aa6..13f05c743f 100644
--- a/maven-polyglot/maven-polyglot-json-extension/pom.xml
+++ b/maven-polyglot/maven-polyglot-json-extension/pom.xml
@@ -47,8 +47,6 @@
     </build>
 	
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
         <maven-core.version>3.5.4</maven-core.version>
     </properties>
 
diff --git a/mesos-marathon/pom.xml b/mesos-marathon/pom.xml
index dee8eca10d..0e9bc321ef 100644
--- a/mesos-marathon/pom.xml
+++ b/mesos-marathon/pom.xml
@@ -2,10 +2,8 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>mesos-marathon</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-	<name>mesos-marathon</name>
+    <name>mesos-marathon</name>
 	
     <parent>
         <artifactId>parent-boot-1</artifactId>
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 4cd9f3de79..d193745620 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -57,47 +57,12 @@
             <version>${micrometer.ver}</version>
         </dependency>
 
-        <dependency>
-            <groupId>io.micrometer</groupId>
-            <artifactId>micrometer-spring-legacy</artifactId>
-            <version>${micrometer.ver}</version>
-        </dependency>
-
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
             <version>${spring-boot-starter-web.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>${fasterxml.jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.dataformat</groupId>
-            <artifactId>jackson-dataformat-smile</artifactId>
-            <version>${fasterxml.jackson.version}</version>
-        </dependency>
-
-        <dependency>
-            <groupId>com.netflix.spectator</groupId>
-            <artifactId>spectator-api</artifactId>
-            <version>${spectator-api.version}</version>
-        </dependency>
-
-        <dependency>
-            <groupId>io.astefanutti.metrics.aspectj</groupId>
-            <artifactId>metrics-aspectj</artifactId>
-            <version>${metrics-aspectj.version}</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.slf4j</groupId>
-                    <artifactId>slf4j-api</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-
         <dependency>
             <groupId>io.astefanutti.metrics.aspectj</groupId>
             <artifactId>metrics-aspectj-deps</artifactId>
@@ -118,8 +83,6 @@
         <dep.ver.servlet>3.1.0</dep.ver.servlet>
         <netflix.servo.ver>0.12.17</netflix.servo.ver>
         <micrometer.ver>0.12.0.RELEASE</micrometer.ver>
-        <fasterxml.jackson.version>2.9.1</fasterxml.jackson.version>
-        <spectator-api.version>0.57.1</spectator-api.version>
 		<spring-boot-starter-web.version>2.0.7.RELEASE</spring-boot-starter-web.version>
 		<assertj-core.version>3.11.1</assertj-core.version>
         <metrics-aspectj.version>1.1.0</metrics-aspectj.version>
diff --git a/microprofile/pom.xml b/microprofile/pom.xml
index 52df348ace..9150a6adb1 100644
--- a/microprofile/pom.xml
+++ b/microprofile/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>microprofile</artifactId>
     <version>1.0-SNAPSHOT</version>
 	<name>microprofile</name>
diff --git a/mustache/pom.xml b/mustache/pom.xml
index 027d62ebc4..0e382ae14b 100644
--- a/mustache/pom.xml
+++ b/mustache/pom.xml
@@ -24,12 +24,6 @@
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
         </dependency>
-
-        <dependency>
-            <groupId>log4j</groupId>
-            <artifactId>log4j</artifactId>
-            <version>${log4j.version}</version>
-        </dependency>
         
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -70,9 +64,6 @@
 
     <properties>
         <mustache.compiler.api.version>0.9.2</mustache.compiler.api.version>
-        <log4j.version>1.2.16</log4j.version>
-
-        <!-- maven plugins -->
         <datafactory.version>0.8</datafactory.version>
         <webjars.bootstrap.version>3.3.7</webjars.bootstrap.version>
     </properties>
diff --git a/mybatis/pom.xml b/mybatis/pom.xml
index 4e63d14ded..b3149dc342 100644
--- a/mybatis/pom.xml
+++ b/mybatis/pom.xml
@@ -2,10 +2,8 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>mybatis</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
-	<name>mybatis</name>
+    <name>mybatis</name>
 	
     <parent>
         <groupId>com.baeldung</groupId>
@@ -14,11 +12,6 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>org.apache.derby</groupId>
-            <artifactId>derby</artifactId>
-            <version>${derby.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
@@ -27,7 +20,6 @@
     </dependencies>
 
     <properties>
-        <derby.version>10.13.1.1</derby.version>
         <mybatis.version>3.2.2</mybatis.version>
     </properties>