+ <!-- Spring versions -->
+ <spring.boot.version>2.1.6.RELEASE</spring.boot.version>
+ <spring.version>5.1.8.RELEASE</spring.version>
+
+ <!-- Kotlin versions -->
+ <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
+ <kotlin.version>1.3.41</kotlin.version>
+ <kotlin.maven.version>1.3.41</kotlin.maven.version>
+ <kotlin.couroutines.version>1.2.2</kotlin.couroutines.version>
+ <mockk.version>1.9</mockk.version>
+
+ <apache.httpcomponents.core.version>4.4.4</apache.httpcomponents.core.version>
+ <apache.httpcomponents.client.version>4.5.2</apache.httpcomponents.client.version>
+ <derby.version>10.14.2.0</derby.version>
+ <eelf.version>1.0.0</eelf.version>
+ <grpc.version>1.18.0</grpc.version>
+ <protobuff.java.utils.version>3.6.1</protobuff.java.utils.version>
+ <jackson.bom.version>2.8.11.20181123</jackson.bom.version>
+ <jersey.version>2.25.1</jersey.version>
+ <jettison.version>1.3.8</jettison.version>
+ <junit.version>4.12</junit.version>
+ <logback.version>1.2.3</logback.version>
+ <mariadb.connector.version>2.1.1</mariadb.connector.version>
+ <mariadb4j.version>2.2.3</mariadb4j.version>
+ <slf4j.version>1.7.25</slf4j.version>
+ <testng.version>6.11</testng.version>
+ <tomcat-jdbc.version>8.5.14</tomcat-jdbc.version>
+
+