database - Neo4j 2.0.0 M3 Initialization Failure -

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i've been using neo4j 2.0.0 m3 release past month or in developing simple web application. i've had absolutely no issues release until today when went start database.

i'm bit of novice , having hard time determining cause of problem , how go fixing it. error log below, hoping in interpreting output. thanks!

  jul 23, 2013 11:10:16 org.neo4j.server.logging.logger log severe:  java.lang.runtimeexception: org.neo4j.kernel.lifecycle.lifecycleexception: component 'org.neo4j.kernel.impl.transaction.xadatasourcemanager@b05236' initialized, failed start. please see attached cause exception.     @ org.neo4j.kernel.internalabstractgraphdatabase.run(internalabstractgraphdatabase.java:319)     @ org.neo4j.kernel.embeddedgraphdatabase.<init>(embeddedgraphdatabase.java:100)     @ org.neo4j.graphdb.factory.graphdatabasefactory$1.newdatabase(graphdatabasefactory.java:92)     @ org.neo4j.graphdb.factory.graphdatabasebuilder.newgraphdatabase(graphdatabasebuilder.java:197)     @ org.neo4j.kernel.impl.recovery.storerecoverer.recover(storerecoverer.java:115)     @ org.neo4j.server.preflight.performrecoveryifnecessary.run(performrecoveryifnecessary.java:59)     @ org.neo4j.server.preflight.preflighttasks.run(preflighttasks.java:70)     @ org.neo4j.server.abstractneoserver.runpreflighttasks(abstractneoserver.java:299)     @ org.neo4j.server.abstractneoserver.start(abstractneoserver.java:132)     @ org.neo4j.server.bootstrapper.start(bootstrapper.java:86)     @ org.neo4j.server.bootstrapper.main(bootstrapper.java:49) caused by: org.neo4j.kernel.lifecycle.lifecycleexception: component 'org.neo4j.kernel.impl.transaction.xadatasourcemanager@b05236' initialized, failed start. please see attached cause exception.     @ org.neo4j.kernel.lifecycle.lifesupport$lifecycleinstance.start(lifesupport.java:504)     @ org.neo4j.kernel.lifecycle.lifesupport.start(lifesupport.java:115)     @ org.neo4j.kernel.internalabstractgraphdatabase.run(internalabstractgraphdatabase.java:296)     ... 10 more caused by: org.neo4j.kernel.lifecycle.lifecycleexception: component 'org.neo4j.kernel.impl.nioneo.xa.neostorexadatasource@6760bf50' initialized, failed start. please see attached cause exception.     @ org.neo4j.kernel.lifecycle.lifesupport$lifecycleinstance.start(lifesupport.java:504)     @ org.neo4j.kernel.lifecycle.lifesupport.start(lifesupport.java:115)     @ org.neo4j.kernel.impl.transaction.xadatasourcemanager.start(xadatasourcemanager.java:126)     @ org.neo4j.kernel.lifecycle.lifesupport$lifecycleinstance.start(lifesupport.java:498)     ... 12 more caused by: java.lang.noclassdeffounderror: java/nio/channels/seekablebytechannel     @ org.neo4j.kernel.impl.transaction.xaframework.xalogicallog.dointernalrecovery(xalogicallog.java:765)     @ org.neo4j.kernel.impl.transaction.xaframework.xalogicallog.open(xalogicallog.java:205)     @ org.neo4j.kernel.impl.transaction.xaframework.xalogicallog.open(xalogicallog.java:160)     @ org.neo4j.kernel.impl.transaction.xaframework.xacontainer.openlogicallog(xacontainer.java:64)     @ org.neo4j.kernel.impl.nioneo.xa.neostorexadatasource.start(neostorexadatasource.java:304)     @ org.neo4j.kernel.lifecycle.lifesupport$lifecycleinstance.start(lifesupport.java:498)     ... 15 more caused by: java.lang.classnotfoundexception: java.nio.channels.seekablebytechannel     @ java.net.urlclassloader$1.run(urlclassloader.java:202)     @ java.security.accesscontroller.doprivileged(native method)     @ java.net.urlclassloader.findclass(urlclassloader.java:190)     @ java.lang.classloader.loadclass(classloader.java:306)     @ sun.misc.launcher$appclassloader.loadclass(launcher.java:301)     @ java.lang.classloader.loadclass(classloader.java:247)     ... 21 more jul 23, 2013 11:10:16 org.neo4j.server.logging.logger log severe: failed start neo server on port [7474]

this because of system requirements neo4j. says need java 7.

looks using java 6 java.lang.classnotfoundexception: java.nio.channels.seekablebytechannel thrown. using java 7 should solve problem.


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