@BeforeEach
    @AfterEach
    public void unsetProperties() {
        JiveGlobals.deleteProperty(MappedGroupProvider.PROPERTY_MAPPER_CLASSNAME);
    }
Unit tests that verify the implementation of {@link MappedGroupProvider}

@author Guus der Kinderen, guus@goodbytes.nl
xmppserver/src/test/java/org/jivesoftware/openfire/group/MappedGroupProviderTest.java