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.