Hi, I'm new to Nutch. I use the latest version (1.0) and I'm getting those errors a lot:
java.util.ConcurrentModificationException?<https://www.semanticsad.com/ContextIn/wiki/ConcurrentModificationException> at java.util.HashMap? <https://www.semanticsad.com/ContextIn/wiki/HashMap>$ HashIterator? <https://www.semanticsad.com/ContextIn/wiki/HashIterator> .nextEntry(HashMap? <https://www.semanticsad.com/ContextIn/wiki/HashMap> .java:793) at java.util.HashMap? <https://www.semanticsad.com/ContextIn/wiki/HashMap>$ ValueIterator? <https://www.semanticsad.com/ContextIn/wiki/ValueIterator> .next(HashMap? <https://www.semanticsad.com/ContextIn/wiki/HashMap> .java:822) at org.apache.nutch.analysis.lang.NGramProfile.normalize(NGramProfile.java:249) at org.apache.nutch.analysis.lang.NGramProfile.analyze(NGramProfile.java:216) at org.apache.nutch.analysis.lang.LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .identify(LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .java:387) at org.apache.nutch.analysis.lang.LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .identify(LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .java:367) at translation.apache.nutch.NutchLanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/NutchLanguageIdentifier> .detect(NutchLanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/NutchLanguageIdentifier> .java:25) and java.lang.NullPointerException?<https://www.semanticsad.com/ContextIn/wiki/NullPointerException> at org.apache.nutch.analysis.lang.NGramProfile.getSorted(NGramProfile.java:266) at org.apache.nutch.analysis.lang.LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .identify(LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .java:388) at org.apache.nutch.analysis.lang.LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .identify(LanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/LanguageIdentifier> .java:367) at translation.apache.nutch.NutchLanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/NutchLanguageIdentifier> .detect(NutchLanguageIdentifier?<https://www.semanticsad.com/ContextIn/wiki/NutchLanguageIdentifier> .java:25) what should I do?