java.lang.NullPointerException

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  • CSV to RDF using Apache Jena?
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    • 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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