java.lang.NullPointerException

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  • Recovery a fairly large crawl on crawling013, getting following exception: 10/13/2005 01:16:57 +0000 FINE org.archive.crawler.frontier.BdbFrontier put Restoring: 146.145.120.3 10/13/2005 01:16:57 +0000 FINE org.archive.crawler.frontier.BdbFrontier put Restoring: 168.8.216.16 java.lang.NullPointerException at java.util.TreeMap.compare(TreeMap.java:1093) at java.util.TreeMap.put(TreeMap.java:465) at java.util.TreeSet.add(TreeSet.java:210) at java.util.Collections$SynchronizedCollection.add(Collections.java:1581) at org.archive.crawler.frontier.BdbFrontier$4.put(BdbFrontier.java:326) at org.archive.crawler.frontier.BdbFrontier.put(BdbFrontier.java:375) at org.archive.crawler.frontier.BdbFrontier.resurrectOneQueueState(BdbFrontier .java:359) at org.archive.crawler.frontier.BdbFrontier.resurrectQueueState(BdbFrontier.ja va:329) at org.archive.crawler.frontier.BdbFrontier.initQueue(BdbFrontier.java:272) at org.archive.crawler.frontier.WorkQueueFrontier.initialize(WorkQueueFrontier .java:269) at org.archive.crawler.frontier.BdbFrontier.initialize(BdbFrontier.java:467) at org.archive.crawler.framework.CrawlController.setupCrawlModules(CrawlContro ller.java:652) at org.archive.crawler.framework.CrawlController.initialize(CrawlController.ja va:378) at org.archive.crawler.admin.CrawlJob.startCrawling(CrawlJob.java:777) at org.archive.crawler.admin.CrawlJobHandler.startNextJobInternal(CrawlJobHand ler.java:1120) at org.archive.crawler.admin.CrawlJobHandler$2.run(CrawlJobHandler.java:1103) at java.lang.Thread.run(Thread.java:595) Later adding asserts, I see that for the key '146.145.120.3', there is not item in allqueues: Exception in thread "StartNextJob" java.lang.AssertionError: null is null: 146.145.120.3 at org.archive.crawler.frontier.BdbFrontier.put(BdbFrontier.java:374) at org.archive.crawler.frontier.BdbFrontier.resurrectOneQueueState(BdbFrontier .java:354) at org.archive.crawler.frontier.BdbFrontier.resurrectQueueState(BdbFrontier.ja va:329) at org.archive.crawler.frontier.BdbFrontier.initQueue(BdbFrontier.java:272) at org.archive.crawler.frontier.WorkQueueFrontier.initialize(WorkQueueFrontier .java:269) at org.archive.crawler.frontier.BdbFrontier.initialize(BdbFrontier.java:467) at org.archive.crawler.framework.CrawlController.setupCrawlModules(CrawlContro ller.java:652) at org.archive.crawler.framework.CrawlController.initialize(CrawlController.ja va:378) at org.archive.crawler.admin.CrawlJob.startCrawling(CrawlJob.java:777) at org.archive.crawler.admin.CrawlJobHandler.startNextJobInternal(CrawlJobHand ler.java:1120) at org.archive.crawler.admin.CrawlJobHandler$2.run(CrawlJobHandler.java:1103) at java.lang.Thread.run(Thread.java:595)
    via by Michael Stack,
  • Date gap analyzer NPE
    via GitHub by LosD
    ,
  • GWT 1.7.1 History Bug
    via by mijaelovic,
  • GWT 1.7.1 History Bug
    via by mijaelovic,
    • java.lang.NullPointerException at java.util.TreeMap.compare(TreeMap.java:1093) at java.util.TreeMap.put(TreeMap.java:465) at java.util.TreeSet.add(TreeSet.java:210) at java.util.Collections$SynchronizedCollection.add(Collections.java:1581) at org.archive.crawler.frontier.BdbFrontier$4.put(BdbFrontier.java:326) at org.archive.crawler.frontier.BdbFrontier.put(BdbFrontier.java:375) at org.archive.crawler.frontier.BdbFrontier.resurrectOneQueueState(BdbFrontier.java:359) at org.archive.crawler.frontier.BdbFrontier.resurrectQueueState(BdbFrontier.java:329) at org.archive.crawler.frontier.BdbFrontier.initQueue(BdbFrontier.java:272) at org.archive.crawler.frontier.WorkQueueFrontier.initialize(WorkQueueFrontier.java:269) at org.archive.crawler.frontier.BdbFrontier.initialize(BdbFrontier.java:467) at org.archive.crawler.framework.CrawlController.setupCrawlModules(CrawlController.java:652) at org.archive.crawler.framework.CrawlController.initialize(CrawlController.java:378) at org.archive.crawler.admin.CrawlJob.startCrawling(CrawlJob.java:777) at org.archive.crawler.admin.CrawlJobHandler.startNextJobInternal(CrawlJobHandler.java:1120) at org.archive.crawler.admin.CrawlJobHandler$2.run(CrawlJobHandler.java:1103) at java.lang.Thread.run(Thread.java:595)

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