Error including library

[jtushar53]

i was just reviewing all classes, will be using AngularJS and Servlets(non-Maven project)

got this error

included all dependency Jackson, SLF4J, first time seen this error.

[lhazlewood]

This must be an Eclipse-specific problem. JJWT builds fine, all tests pass, and is used in many Java projects. We use it in our JDK 8 project (and others) with no problems.

On a separate issue: are you including an SLF4J implementation jar? Just having the API isn't good enough. You need to select an implementation of the API that is relevant for your logging implementation of choice (e.g. Log4j, Logback, etc)