Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via JIRA by Gordon Mohr, 1 year ago
This exception has no message.
via JIRA by Gordon Mohr, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at org.archive.crawler.framework.WriterPoolProcessor.close(WriterPoolProcessor.java:446)	at org.archive.settings.SheetManager.closeModules(SheetManager.java:377)	at org.archive.crawler.framework.CrawlController.completeStop(CrawlController.java:570)	at org.archive.crawler.framework.CrawlController.toeEnded(CrawlController.java:996)	at org.archive.crawler.framework.ToeThread.run(ToeThread.java:187)