package japicmp.test; import org.apache.commons.math3.analysis.TrivariateFunction; import org.apache.commons.math3.stat.inference.TTest; public class ExternalLibraryDep { public static class NoSuperclassToExtendsTestCase extends TTest implements TrivariateFunction { @Override public double value(double v, double v1, double v2) { return 0; } } }