We've recently started using the Maven dependency

<dependency> <groupId>nl.martijndwars</groupId> <artifactId>web-push</artifactId> <version>5.1.2</version> </dependency> 

and we're getting the error message

"Cannot access org.jose4j.lang.JoseException
class file for org.jose4j.lang.JoseException not found"

Can you promptly update the dependency

<dependency> <groupId>org.bitbucket.b_c</groupId> <artifactId>jose4j</artifactId> <version>0.7.9</version> <scope>runtime</scope> </dependency> 

in your pom.xml? The version currently in use is causing the error.