Installing Scripting Macros dependencies breaks indexing

The Scripting Macros plugin directs users to install two JARs for POI 3.0 in WEB-INF/lib. This clashes with POI 2.0 which is used by Confluence, and causes the error below.

We need to either get the Scripting Macros to bundle this dependency (easier), or update Confluence to use POI 3.0 (harder).

This is the stack trace:
Caused by: java.lang.NoClassDefFoundError
at org.apache.poi.hwpf.model.TextPieceTable.(TextPieceTable.java:47)
at org.apache.poi.hwpf.model.ComplexFileTable.(ComplexFileTable.java:58)
at org.textmining.text.extraction.WordExtractor.extractText(WordExtractor.java:114)
at bucket.search.lucene.extractor.MsWordContentExtractor.extractText(MsWordContentExtractor.java:33)
at bucket.search.lucene.extractor.BaseAttachmentContentExtractor.addFields(BaseAttachmentContentExtractor.java:32)
at bucket.search.lucene.BaseDocumentBuilder.getDocument(BaseDocumentBuilder.java:28)
at com.atlassian.confluence.search.lucene.tasks.AddDocumentIndexTask.perform(AddDocumentIndexTask.java:33)
at com.atlassian.confluence.search.lucene.DefaultConfluenceIndexManager$2.perform(DefaultConfluenceIndexManager.java:191)
at com.atlassian.bonnie.LuceneConnection.withWriter(LuceneConnection.java:248)
at com.atlassian.bonnie.LuceneConnection.withWriter(LuceneConnection.java:238)
at com.atlassian.confluence.search.lucene.DefaultConfluenceIndexManager.processTasks(DefaultConfluenceIndexManager.java:182)
at com.atlassian.confluence.search.lucene.DefaultConfluenceIndexManager.flushQueue(DefaultConfluenceIndexManager.java:93)
at sun.reflect.GeneratedMethodAccessor323.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)

Support cases (visible to Atlassian staff only):

• https://support.atlassian.com/browse/CSP-5010
• https://support.atlassian.com/browse/CSP-5347
• https://support.atlassian.com/browse/CSP-5417
• https://support.atlassian.com/browse/CSP-5245
• https://support.atlassian.com/browse/CSP-5510