Lucene Index Writer triggers exception com.ctc.wstx.exc.WstxUnexpectedCharException when indexing document file titles

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.0 DXP SP2, Master
• Fix Version/s: 6.2.X EE, 7.0.0 DXP FP11, 7.0.X, 7.1.X, Master
• Component/s: Search Infrastructure
• Labels:
  • ee-ts
  • liferay-digital-enterprise-70-sp2
  • liferay-fixpack-de-11-7010
  • liferay-fixpack-portal-164-6210
• Branch Version/s:
  7.0.x, 6.2.x
• Backported to Branch:
  Committed
• Story Points: 1
• Git Pull Request: https://github.com/hhuijser/liferay-portal/pull/2768

Steps:
1/ Start portal
2/ Sign in as portal admin user
3/ Navigate to Control Panel > Server Administration > Log Levels > Update Categories
4/ Enter text "com.liferay.portal.util" into search field and click "Search" button
5/ Change logging level from ERROR to WARN
6/ Scroll down page and click "Save" button.
7/ Add file to into documents and media.
8/ Review portal log files.
Expected outcome: No warning exception.
Actual outcome: WARN entry "com.ctc.wstx.exc.WstxUnexpectedCharException" reported.

06:26:52,795 WARN  [http-bio-9090-exec-1][LocalizationImpl:1062] com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character 'b' (code 98) in prolog; expected '<'__ at [row,col {unknown-source}
]: [1,1] [Sanitized]
com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character 'b' (code 98) in prolog; expected '<'__ at [row,col {unknown-source}]: [1,1] [Sanitized]
        at com.ctc.wstx.sr.StreamScanner.throwUnexpectedChar(StreamScanner.java:623)
        at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2047)
        at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
        at com.ctc.wstx.sr.BasicStreamReader.nextTag(BasicStreamReader.java:1095)
        at com.liferay.portal.util.LocalizationImpl._getRootAttributeValue(LocalizationImpl.java:1055)
        at com.liferay.portal.util.LocalizationImpl.getDefaultLanguageId(LocalizationImpl.java:170)
        at com.liferay.portal.kernel.util.LocalizationUtil.getDefaultLanguageId(LocalizationUtil.java:88)
        at com.liferay.portlet.asset.model.impl.AssetEntryModelImpl.getDefaultLanguageId(AssetEntryModelImpl.java:1224)
        at com.liferay.portal.kernel.search.BaseIndexer.populateMap(BaseIndexer.java:1819)
        at com.liferay.portal.kernel.search.BaseIndexer.addAssetFields(BaseIndexer.java:689)
        at com.liferay.portal.kernel.search.BaseIndexer.getBaseModelDocument(BaseIndexer.java:1631)
        at com.liferay.portlet.documentlibrary.util.DLFileEntryIndexer.doGetDocument(DLFileEntryIndexer.java:358)
        at com.liferay.portal.kernel.search.BaseIndexer.getDocument(BaseIndexer.java:183)
        at com.liferay.portlet.documentlibrary.util.DLFileEntryIndexer.doReindex(DLFileEntryIndexer.java:502)
        at com.liferay.portal.kernel.search.BaseIndexer.reindex(BaseIndexer.java:489)
        at com.liferay.portlet.documentlibrary.service.impl.DLFileEntryLocalServiceImpl.reindex(DLFileEntryLocalServiceImpl.java:2437)
        at com.liferay.portlet.documentlibrary.service.impl.DLFileEntryLocalServiceImpl.updateStatus(DLFileEntryLocalServiceImpl.java:1871)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:115)
        at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:62)
        at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:51)
        at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111)
        at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
        at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111)
        at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
        at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111)
        at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
        at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111)