public void addCwe(String cwe) {
        if (cwe != null) {
            this.cwes.add(cwe);
        }
    }
@Test
    public void testAddCwe() {
        System.out.println("addCwe");
        String cwe = "CWE-89";
        CweSet instance = new CweSet();
        instance.addCwe(cwe);
        assertFalse(instance.getEntries().isEmpty());
    }