java.lang.NullPointerException: This exception has no message.

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, 8 months ago
This exception has no message.
java.lang.NullPointerException:
at org.apache.jena.ext.com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770)
at org.apache.jena.ext.com.google.common.cache.LocalCache.get(LocalCache.java:4153)
at org.apache.jena.ext.com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:5060)
at org.apache.jena.atlas.lib.cache.CacheGuava.getOrFill(CacheGuava.java:58)
at org.apache.jena.riot.system.IRIResolver$IRIResolverNormal.resolveSilentCache(IRIResolver.java:470)
at org.apache.jena.riot.system.IRIResolver$IRIResolverNormal.resolveSilent(IRIResolver.java:454)
at org.apache.jena.riot.system.IRIResolver.resolve(IRIResolver.java:328)
at org.apache.jena.riot.system.IRIResolver$IRIResolverSync.resolve(IRIResolver.java:489)
at org.apache.jena.riot.system.IRIResolver.resolveIRI(IRIResolver.java:254)
at org.apache.jena.riot.system.IRIResolver.resolveString(IRIResolver.java:233)
at org.apache.jena.riot.lang.ReaderRIOTCSV.parse(ReaderRIOTCSV.java:89)
at org.apache.jena.riot.lang.ReaderRIOTCSV.read(ReaderRIOTCSV.java:67)
at org.apache.jena.riot.RDFParser.read(RDFParser.java:293)
at org.apache.jena.riot.RDFParser.parseNotUri(RDFParser.java:283)
at org.apache.jena.riot.RDFParser.parse(RDFParser.java:233)
at riotcmd.CmdLangParse.parseRIOT(CmdLangParse.java:286)
at riotcmd.CmdLangParse.parseFile(CmdLangParse.java:216)
at riotcmd.CmdLangParse.exec$(CmdLangParse.java:161)
at riotcmd.CmdLangParse.exec(CmdLangParse.java:127)
at jena.cmd.CmdMain.mainMethod(CmdMain.java:93)
at jena.cmd.CmdMain.mainRun(CmdMain.java:58)
at jena.cmd.CmdMain.mainRun(CmdMain.java:45)
at riotcmd.riot.main(riot.java:34)

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