Shared Library jar are not loaded by Liberty - websphere-liberty

Question

I have spring MVC application which uses Spring 4.I deploying my application in Liberty 16.0.0.3.I have below server.xml configuration.
<server description="Default Server">
<featureManager>
<feature>webProfile-7.0</feature>
<feature>localConnector-1.0</feature>
</featureManager>
<variable name="defaultHostName" value="localhost"/>
<keyStore id="defaultKeyStore" password="mypassword" />
<!-- Define an Administrator and non-Administrator -->
<basicRegistry id="basic">
<user name="admin" password="mypassword"/>
<user name="nonadmin" password="mypassword"/>
</basicRegistry>
<!-- Assign 'admin' to Administrator -->
<administrator-role>
<user>admin</user>
</administrator-role>
<webContainer deferServletLoad="false"/>
<applicationManager autoExpand="true"/>
<httpEndpoint host="*" httpPort="9080" httpsPort="9443" id="defaultHttpEndpoint"/>
<variable name="defaultHostName" value="localhost"/>
<library id="global">
<fileset dir="${shared.config.dir}/lib/global" includes="*.jar" />
</library>
<application type="war" location="testliberty.war" autoStart="true" context-root="/Spring4">
<classloader commonLibraryRef="global" delegation="parentLast"/>
</application>
</server>
I have placed all spring specific jar's in below location.
usr\shared\config\lib\global
Anthoer option
server\lib\global
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.liberty.sample</groupId>
<artifactId>TestLiberty</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>HelloWorld</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<org.springframework-version>4.3.0.RELEASE</org.springframework-version>
<runtime.scope>provided</runtime.scope>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
<scope>${runtime.scope}</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>${runtime.scope}</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>${runtime.scope}</scope>
</dependency>
</dependencies>
<build>
<finalName>HelloWorld</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${java-version}</source>
<target>${java-version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>src/main/webapp</warSourceDirectory>
<warName>testliberty</warName>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
But none of this option is working.Server is not loading these jar's due to this Spring application context is not getting loaded.But same application is working fine if I package all the jar's in WEB-INF/lib folder.