Some documents cannot be Tika extracted due to classloader problem

FATAL 2018-01-09T10:19:54,992 (Worker thread '5') - Error tossed: org.apache.poi.hwmf.record.HwmfFont.getCharSet()Lorg/apache/poi/hwmf/record/HwmfFont$WmfCharset;

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) ~[?:?]

        at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]

        at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]

        at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:135) ~[?:?]

        at org.apache.tika.parser.DelegatingParser.parse(DelegatingParser.java:72) ~[?:?]

        at org.apache.tika.extractor.ParsingEmbeddedDocumentExtractor.parseEmbedded(ParsingEmbeddedDocumentExtractor.java:102) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.AbstractOOXMLExtractor.handleEmbeddedFile(AbstractOOXMLExtractor.java:375) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.AbstractOOXMLExtractor.handleEmbeddedPart(AbstractOOXMLExtractor.java:260) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.AbstractOOXMLExtractor.handleEmbeddedParts(AbstractOOXMLExtractor.java:205) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.AbstractOOXMLExtractor.getXHTML(AbstractOOXMLExtractor.java:142) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.OOXMLExtractorFactory.parse(OOXMLExtractorFactory.java:142) ~[?:?]

        at org.apache.tika.parser.microsoft.ooxml.OOXMLParser.parse(OOXMLParser.java:106) ~[?:?]

        at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]

        at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]

        at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:135) ~[?:?]

        at org.apache.manifoldcf.agents.transformation.tika.TikaParser.parse(TikaParser.java:74) ~[?:?]

        at org.apache.manifoldcf.agents.transformation.tika.TikaExtractor.addOrReplaceDocumentWithException(TikaExtractor.java:235) ~[?:?]

        at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddEntryPoint.addOrReplaceDocumentWithException(IncrementalIngester.java:3226) ~[mcf-agents.jar:?]

        at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddFanout.sendDocument(IncrementalIngester.java:3077) ~[mcf-agents.jar:?]

        at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineObjectWithVersions.addOrReplaceDocumentWithException(IncrementalIngester.java:2708) ~[mcf-agents.jar:?]

        at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester.documentIngest(IncrementalIngester.java:756) ~[mcf-agents.jar:?]

        at org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1583) ~[mcf-pull-agent.jar:?]

        at org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1548) ~[mcf-pull-agent.jar:?]

        at org.apache.manifoldcf.crawler.connectors.sharedrive.SharedDriveConnector.processDocuments(SharedDriveConnector.java:939) ~[?:?]

        at org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:399) [mcf-pull-agent.jar:?]