Difference between ehcache and ehcache-core

Question

I am beginner for ehcache v/s ehcache-core in Spring framework, my pom.xml used ehcache version 1.5.0

<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>1.5.0</version>
</dependency>

Now, it will need to update ehcache version because it will use in another jar:- Updated ehcache version 2.7.0 But it returns error net.sf.ehcache.Cache.getStatistics() method not found.

Now, I am replacing ehcache via ehcache-core 2.5.7 as:-

<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>2.5.7</version>
</dependency>

Is it break another functionalities or will work same as ehcache?

Answer 1

Just as many other large frameworks (like Spring), ehcache is split into several modules. One of those modules is core, the others are web, server, jcache, debugger and many more (see https://mvnrepository.com/artifact/org.ehcache.modules).

Sometimes, for various reasons, you may not want to include the entire large framework, with all its sublibraries, into your project. Then you can decide which module you want to use.

In other words, using ehcache pom will include a full library in your project. Using ehcache-core will only include functionalities defined in ehcache-core.

You can either find out which module contains the functionality you need and include it, or go with full ehcache but use the appropriate version.