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_java.lang.StackOverflowError: 	at java.io.UnixFileSystem.getBooleanAttributes0(Native Method)	at java.io.UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:242)	at java.io.File.exists(File.java:819)	at sun.misc.FileURLMapper.exists(FileURLMapper.java:78)	at sun.misc.URLClassPath$JarLoader.getJarFile(URLClassPath.java:890)	at sun.misc.URLClassPath$JarLoader.access$700(URLClassPath.java:756)	at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:838)	at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:831)	at java.security.AccessController.doPrivileged(Native Method)	at sun.misc.URLClassPath$JarLoader.ensureOpen(URLClassPath.java:830)	at sun.misc.URLClassPath$JarLoader.(URLClassPath.java:803)	at sun.misc.URLClassPath$JarLoader$3.run(URLClassPath.java:1057)	at sun.misc.URLClassPath$JarLoader$3.run(URLClassPath.java:1054)	at java.security.AccessController.doPrivileged(Native Method)	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1053)	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1013)	at sun.misc.URLClassPath$JarLoader.findResource(URLClassPath.java:983)	at sun.misc.URLClassPath$1.next(URLClassPath.java:240)	at sun.misc.URLClassPath$1.hasMoreElements(URLClassPath.java:250)	at java.net.URLClassLoader$3$1.run(URLClassLoader.java:601)	at java.net.URLClassLoader$3$1.run(URLClassLoader.java:599)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader$3.next(URLClassLoader.java:598)	at java.net.URLClassLoader$3.hasMoreElements(URLClassLoader.java:623)	at sun.misc.CompoundEnumeration.next(CompoundEnumeration.java:45)	at sun.misc.CompoundEnumeration.hasMoreElements(CompoundEnumeration.java:54)	at java.util.ServiceLoader$LazyIterator.hasNextService(ServiceLoader.java:354)	at java.util.ServiceLoader$LazyIterator.hasNext(ServiceLoader.java:393)	at java.util.ServiceLoader$1.hasNext(ServiceLoader.java:474)	at javax.xml.parsers.FactoryFinder$1.run(FactoryFinder.java:293)	at java.security.AccessController.doPrivileged(Native Method)	at javax.xml.parsers.FactoryFinder.findServiceProvider(FactoryFinder.java:289)	at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:267)	at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:127)	at org.apache.tika.detect.XmlRootExtractor.extractRootElement(XmlRootExtractor.java:51)	at org.apache.tika.detect.XmlRootExtractor.extractRootElement(XmlRootExtractor.java:42)	at org.apache.tika.mime.MimeTypes.getMimeType(MimeTypes.java:206)	at org.apache.tika.mime.MimeTypes.detect(MimeTypes.java:472)	at org.apache.tika.detect.CompositeDetector.detect(CompositeDetector.java:77)	at com.norconex.importer.doc.ContentTypeDetector.doDetect(ContentTypeDetector.java:111)	at com.norconex.importer.doc.ContentTypeDetector.detect(ContentTypeDetector.java:75)	at com.norconex.importer.Importer.doImportDocument(Importer.java:233)	at com.norconex.importer.Importer.importDocument(Importer.java:195)	at com.norconex.importer.Importer.doImportDocument(Importer.java:280)	at com.norconex.importer.Importer.importDocument(Importer.java:195)	at com.norconex.importer.Importer.doImportDocument(Importer.java:280)	at com.norconex.importer.Importer.importDocument(Importer.java:195)	at com.norconex.importer.Importer.doImportDocument(Importer.java:280)