クロール時にNoSuchMethodErrorが出た場合の対処方法について

(from osdn.net/users/takashi__aoki)
お世話になっております。

Windows server 2016上に構築したFess11.4から別サーバ(windows server 2016)のファイル(Excel)に対しsmbでファイルクロールを行った際にまれに以下のようなエラーが出る場合があります。
このエラーの原因及び、対処方法があればご教授願えないでしょうか?
また、このようなエラーが出た場合は「全角日本語のファイル名.xls」のindex作成は行われないと思ってよいでしょうか?

2017-05-10 00:41:42,410 [Crawler-20170509180000-23-2] ERROR Crawling Exception at smb://xx.xx.xx.xx/xx/xxx/全角日本語のファイル名.xls
java.lang.NoSuchMethodError: org.apache.poi.hwmf.record.HwmfFont.getCharSet()Lorg/apache/poi/hwmf/record/HwmfFont$WmfCharset;
at org.apache.tika.parser.microsoft.WMFParser.parse(WMFParser.java:74) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor$TikaDetectParser.parse(TikaExtractor.java:496) ~[fess-crawler-1.5.4.jar:?]
at org.apache.tika.parser.DelegatingParser.parse(DelegatingParser.java:72) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.extractor.ParsingEmbeddedDocumentExtractor.parseEmbedded(ParsingEmbeddedDocumentExtractor.java:102) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.EMFParser.handleWMF(EMFParser.java:133) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.EMFParser.parse(EMFParser.java:94) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor$TikaDetectParser.parse(TikaExtractor.java:496) ~[fess-crawler-1.5.4.jar:?]
at org.apache.tika.parser.DelegatingParser.parse(DelegatingParser.java:72) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.extractor.ParsingEmbeddedDocumentExtractor.parseEmbedded(ParsingEmbeddedDocumentExtractor.java:102) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.extractor.EmbeddedDocumentUtil.parseEmbedded(EmbeddedDocumentUtil.java:198) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.AbstractPOIFSExtractor.handleEmbeddedResource(AbstractPOIFSExtractor.java:124) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.AbstractPOIFSExtractor.handleEmbeddedResource(AbstractPOIFSExtractor.java:100) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.ExcelExtractor$TikaHSSFListener.findPictures(ExcelExtractor.java:617) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.ExcelExtractor$TikaHSSFListener.findPictures(ExcelExtractor.java:625) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.ExcelExtractor$TikaHSSFListener.findPictures(ExcelExtractor.java:625) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.ExcelExtractor$TikaHSSFListener.processFile(ExcelExtractor.java:326) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.ExcelExtractor.parse(ExcelExtractor.java:169) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.OfficeParser.parse(OfficeParser.java:183) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.microsoft.OfficeParser.parse(OfficeParser.java:131) ~[tika-parsers-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[tika-core-1.16.jar:1.16]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor$TikaDetectParser.parse(TikaExtractor.java:496) ~[fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor.lambda$getText$0(TikaExtractor.java:184) ~[fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor.getContent(TikaExtractor.java:394) ~[fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.extractor.impl.TikaExtractor.getText(TikaExtractor.java:173) ~[fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.transformer.AbstractFessFileTransformer.getExtractData(AbstractFessFileTransformer.java:347) ~[classes/:?]
at org.codelibs.fess.crawler.transformer.AbstractFessFileTransformer.generateData(AbstractFessFileTransformer.java:107) ~[classes/:?]
at org.codelibs.fess.crawler.transformer.AbstractFessFileTransformer.transform(AbstractFessFileTransformer.java:88) ~[classes/:?]
at org.codelibs.fess.crawler.processor.impl.DefaultResponseProcessor.process(DefaultResponseProcessor.java:77) ~[fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.CrawlerThread.processResponse(CrawlerThread.java:330) [fess-crawler-1.5.4.jar:?]
at org.codelibs.fess.crawler.FessCrawlerThread.processResponse(FessCrawlerThread.java:254) ~[classes/:?]
at org.codelibs.fess.crawler.CrawlerThread.run(CrawlerThread.java:176) [fess-crawler-1.5.4.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]

最新バージョンを利用していただければ発生しないと思いますが、
そのような例外が出ている場合にはそのファイルはインデックスされていません。