Tool to dump Jackrabbit Oak persistent cache entries in text format. Its based on code by Thomas

$ java -jar persistent-cache-dumper.jar cache-0.data
map,length,key
node,157,/jcr:system/jcr:versionStorage/56/d9@br1523fec1483-0-1
node,155,/jcr:system/jcr:versionStorage/56/d9@r1523fec53bb-3-1
node,157,/jcr:system/jcr:versionStorage/56/da@br1523fec1483-0-1
node,155,/jcr:system/jcr:versionStorage/56/da@r1523fec53bb-3-1
...