MNK-5711 Ignore test if we cannot get hold of the logger

git-svn-id: http://svn.terracotta.org/svn/ehcache@8358 b9324663-ca0f-0410-8574-be9b3887307d
MNK-5711 merge revision 8358 from bramch 2.7.x

git-svn-id: http://svn.terracotta.org/svn/ehcache@8359 b9324663-ca0f-0410-8574-be9b3887307d