java.lang.NoSuchMethodError when trying to create harvest

20-Nov-2017 11:20:52.443 INFO [Harvest worker] dk.kb.webdanica.webapp.workflow.HarvestWorkThread.harvest Waiting for harvest to complete or timeout (max wait until Mon Nov 20 11:35:52 C
ET 2017) of seed: http://a1.googlevideo.com/
Exception in thread "Thread-4888" java.lang.NoSuchMethodError: com.mchange.v2.async.ThreadPoolAsynchronousRunner.<init>(IZLjava/util/Timer;Ljava/lang/String;)V
        at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.createTaskRunner(C3P0PooledConnectionPoolManager.java:145)
        at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.poolsInit(C3P0PooledConnectionPoolManager.java:174)
        at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.<init>(C3P0PooledConnectionPoolManager.java:295)
        at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getPoolManager(AbstractPoolBackedDataSource.java:520)
        at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:140)
        at dk.netarkivet.harvester.datamodel.HarvestDBConnection.get(HarvestDBConnection.java:105)
        at dk.netarkivet.harvester.datamodel.ScheduleDBDAO.<init>(ScheduleDBDAO.java:61)
        at dk.netarkivet.harvester.datamodel.ScheduleDAO.getInstance(ScheduleDAO.java:60)
        at dk.kb.webdanica.core.interfaces.harvesting.SingleSeedHarvest.<init>(SingleSeedHarvest.java:113)
        at dk.kb.webdanica.webapp.workflow.HarvesterThread.run(HarvesterThread.java:46)
        at java.lang.Thread.run(Thread.java:748)
20-Nov-2017 11:21:22.443 SEVERE [Harvest worker] dk.kb.webdanica.webapp.workflow.HarvestWorkThread.harvest java.lang.NullPointerException
 java.lang.NullPointerException
        at dk.kb.webdanica.webapp.workflow.HarvestWorkThread.harvest(HarvestWorkThread.java:398)
        at dk.kb.webdanica.webapp.workflow.HarvestWorkThread.process_run(HarvestWorkThread.java:322)
        at dk.kb.webdanica.webapp.workflow.WorkThreadAbstract.run(WorkThreadAbstract.java:84)
        at java.lang.Thread.run(Thread.java:748)