Added fixtures to be able to run the oak-jcr tests with that store:
cd oak-jcr
mvn clean test -Dnsfixtures=MEMORY_MULTI_NS -Dtest=LongPathTest
That LongPathTest currently fails as MultiplexingDocumentStore.asDocumentKey(...) is called with a key string that's a hashed version of a long path. That hash does not provide the required info to select the appropriate store.
To fix this we might introduce a DocumentKey object that always keeps the path that corresponds to the possibly hashed document key. This was discussed at http://markmail.org/message/ztpm5rwggmsvwy3r , the Oak folks did not seem too enthusiastic as that entails a lot of small changes. But that's probably the cleanest way.
Apart from that all oak-jcr tests pass with that fixture, after fixing (IMO) MultiplexingDocumentStore.create to return true only if all its stores return true.