Explanation of error NoClassDefFoundError: org/neo4j/kernel/impl/util/JobScheduler

apoc
noclassdeffounderror
jobscheduler
knowledge-base

(Dana Canzano) #1

Upon upgrading to Neo4j 3.3, if you were previously using APOC, and
did not download and install the version of APOC for 3.3 bin\neo4j start will fail.

The contents of your $NEO4J_HOME/logs/neo4j.log will appear similar to.

2017-11-07 20:38:38.245+0000 INFO  Bolt enabled on 0.0.0.0:7687.
2017-11-07 20:38:38.265+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@c73c26' was successfully initialized, but failed to start. Please see the attached cause exception "org.neo4j.kernel.impl.util.JobScheduler". Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@c73c26' was successfully initialized, but failed to start. Please see the attached cause exception "org.neo4j.kernel.impl.util.JobScheduler".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@c73c26' was successfully initialized, but failed to start. Please see the attached cause exception "org.neo4j.kernel.impl.util.JobScheduler".
        at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:68)
        at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:218)
        at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:111)
        at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:79)
        at org.neo4j.server.enterprise.CommercialEntryPoint.main(CommercialEntryPoint.java:22)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@c73c26' was successfully initialized, but failed to start. Please see the attached cause exception "org.neo4j.kernel.impl.util.JobScheduler".
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:466)
        at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
        at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:210)
        ... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory, /home/neo4j/neo4j-enterprise-3.3.0/data/databases/graph.db.out
        at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:211)
        at org.neo4j.kernel.enterprise.EnterpriseGraphDatabase.<init>(EnterpriseGraphDatabase.java:36)
        at org.neo4j.server.enterprise.EnterpriseNeoServer.lambda$static$1(EnterpriseNeoServer.java:75)
        at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:88)
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:445)
        ... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.extension.KernelExtensions@165be2d' failed to initialize. Please see the attached cause exception "org.neo4j.kernel.impl.util.JobScheduler".
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:427)
        at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:62)
        at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:98)
        at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:207)
        ... 9 more
Caused by: java.lang.NoClassDefFoundError: org/neo4j/kernel/impl/util/JobScheduler
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetPublicMethods(Class.java:2902)
        at java.lang.Class.getMethods(Class.java:1615)
        at sun.misc.ProxyGenerator.generateClassFile(ProxyGenerator.java:451)
        at sun.misc.ProxyGenerator.generateProxyClass(ProxyGenerator.java:339)
        at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:639)
        at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
        at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
        at java.lang.reflect.WeakCache.get(WeakCache.java:127)
        at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
        at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719)
        at org.neo4j.kernel.impl.util.DependenciesProxy.dependencies(DependenciesProxy.java:55)
        at org.neo4j.kernel.extension.KernelExtensions.getKernelExtensionDependencies(KernelExtensions.java:125)
        at org.neo4j.kernel.extension.KernelExtensions.init(KernelExtensions.java:58)
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:406)
        ... 12 more
Caused by: java.lang.ClassNotFoundException: org.neo4j.kernel.impl.util.JobScheduler
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 28 more
2017-11-07 20:38:38.268+0000 INFO  Neo4j Server shutdown initiated by request

To resolve this error download and install the version of APOC for 3.3 and as detailed here