FileUtil.extractText is not working correctly in case of configuring text.extraction.fork.process.enabled=true

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.X, 7.1.X, 7.2.X, Master
• Fix Version/s: 6.2.X EE, 7.0.0 DXP FP84, 7.0.X, 7.1.10 DXP FP13, 7.1.X, 7.2.10 DXP FP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: DM
• Labels:
  • ee-ts
  • liferay-fixpack-de-84-7010
  • liferay-fixpack-dxp-1-7210
  • liferay-fixpack-dxp-13-7110
  • liferay-fixpack-portal-171-6210
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x, 6.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Sprint: 027 - Sandshrew
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/74430

FileUtil.extractText is not working correctly in case of configuring text.extraction.fork.process.enabled=true in portal-ext.properties

Steps to reproduce

1. Before starting Liferay, configure text.extraction.fork.process.enabled=true in portal-ext.properties
2. Create a docx or odt file with content:

   This is a test

3. Create a site
4. Attach created file to document library in previous created site
5. Get indexed data from elasticsearch, opening following URL: (note: set your groupId)

   http://localhost:9200/_search?q=%2BgroupId:<<YOUR_GROUPID>>+%2BentryClassName:com.liferay.document.library.kernel.model.DLFileEntry&pretty

6. Review "content_en_US" field of each returned document:
   • Expected behavior: the document has a "This is a test" text in "content_en_US" field
   • Wrong behavior: the document doesn't have any text in "content_en_US"