org.springframework.beans.factory .SmartInitializingSingleton not found

Asked on February 09, 2016
Why this error. I am new to spring.
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.factory.SmartInitializingSingleton
at java.net.URLClassLoader$1.run(URLClassLoader.java:372) ~[na:1.8.0]
at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[na:1.8.0]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0]
at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[na:1.8.0]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) ~[na:1.8.0]

Replied on February 09, 2016
SmartInitializingSingleton has been introduced in spring 4.1 in spring-beans.
Resolve JAR dependencies using latest spring bean version.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
Resolve JAR dependencies using latest spring bean version.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>