ClassNotFoundException after upgrading Infinispan from 8.2.6 to 9.0.0

[danielbarbarian]

I have recently completed an implementation using Infinispan. It is a spring boot application, using JCache JSR-107 with Infinispan 8.2.6 as a provider. It is a maven project so the infinispan configuration is this:

<dependency>
  <groupId>org.infinispan</groupId>
  <artifactId>infinispan-jcache</artifactId>
  <version>8.2.6.Final</version>
</dependency>

Now I decided to go for version 9.0.0 of Infinispan and hoped all I had to do was to set the version to 9.0.0.Final. Dependencies resolve fine but as soon as I start to run my unit tests again they all fail. The root cause exception is this:

Caused by: java.lang.ClassNotFoundException: org.infinispan.util.logging.LogFactory

    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

    ... 71 more

I have read in the release notes and saw a note about logging having some dependency changes. So I also tried adding the below dependency but this resulted in a slf4j clash.

<dependency>
   <groupId>org.infinispan</groupId>
   <artifactId>infinispan-embedded</artifactId>
</dependency>


What else would I need to do to get my application working with the latest version of Infinispan?

[sebastian.laskawiec]

Yes, we mentioned this change in our Upgrading Guide.

JCache module can be used either with Uber Jar (infinispan-embedded) or Small Jars. Since Infinispan logger configuration clashes with your deployment, you need to use the latter. So just add org.infinispan:infinispan-core to your classpath.

[danielbarbarian]

Yes, that seems to have done it. I think I got it confused with another error that started occurring after the upgrade, but I will post that separately.