Datanucleus Level 2 Cache in app engine

Level 2 cache is disabled by default in Datanucleus, 

to enable it you've gotta 

• download the cache plugin here
• place it in your applications lib directory
• edit your persistence.xml and add
• <property name="datanucleus.cache.level2" value="true">
<property name="datanucleus.cache.level2.type" value="soft">

  after
  
<property name="datanucleus.ConnectionURL" value="appengine"/>

Additional configuration options are available here.


App engines memcache implements JCache(javax.cache) interface, but i get a serialization error when attempting to save a object.