[NUTCH-2487] Fetcher thread stopped due to constraint violation

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.14
• Component/s: fetcher

Environment

ubuntu 14.04 64 bit
java details: openjdk 1.8

• Assignee: Unassigned
• Reporter: dhirajforyou
• Created: 26/Dec/17 05:48
• Updated: 26/Dec/17 09:51
• Resolved: 26/Dec/17 06:41

Description

FetcherThread 42 fetch of https://nutch.apache.org/ failed with: java.lang.LinkageError: loader constraint violation: when resolving method "org.slf4j.impl.StaticLoggerBinder.getLoggerFactory()Lorg/slf4j/ILoggerFactory;" the class loader (instance of org/apache/nutch/plugin/PluginClassLoader) of the current class, org/slf4j/LoggerFactory, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, org/slf4j/impl/StaticLoggerBinder, have different Class objects for the type org/slf4j/ILoggerFactory used in the signature
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:299)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
at ir.co.bayan.simorq.zal.extractor.nutch.ExtractorParser.<clinit>(ExtractorParser.java:29)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at org.apache.nutch.plugin.Extension.getExtensionInstance(Extension.java:161)
at org.apache.nutch.parse.ParserFactory.getParsers(ParserFactory.java:138)
at org.apache.nutch.parse.ParseUtil.parse(ParseUtil.java:80)
at org.apache.nutch.fetcher.FetcherThread.output(FetcherThread.java:631)
at org.apache.nutch.fetcher.FetcherThread.run(FetcherThread.java:375)