return requirement;
    }

    public void setRequirement(Requirement requirement) {
        this.requirement = requirement;
    }

    public String getImplementation() {
        return implementation;
    }

    public void setImplementation(String implementation) {
        this.implementation = implementation;
    }

    public String getSince() {
        return since;
    }

        assertFalse(md.isThreadSafe(), "Expected " + md + ".isThreadSafe() to return false");
        assertEquals("package", md.getPhase());
        assertEquals("org.apache.maven.plugin.jar.JarMojo", md.getImplementation());
        assertEquals("antrun", md.getComponentConfigurator());
        assertEquals("java", md.getLanguage());
        assertEquals("per-lookup", md.getInstantiationStrategy());