HyphenationCompoundWordTokenFilter fails to load DTD in Crimson parser (JDK 1.4)
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Key: LUCENE-2731
URL: https://issues.apache.org/jira/browse/LUCENE-2731
Project: Lucene - Java
Issue Type: Bug
Components: contrib/analyzers
Reporter: Uwe Schindler
Assignee: Uwe Schindler
Fix For: 2.9.4
HyphenationCompoundWordTokenFilter loads the DTD in its XML parser from memory
by supplying EntityResolver. In Java 1.4 (affects Lucene 2.9, but also later
versions if not Apache Xerces is used as XML parser) this does not work,
because Cromson does not even ask the entity resolver, if no base URI is known.
As the hyphenation file is loaded from Reader/InputStream no base URI is known.
Crimson needs at least a non-null systemId to proceed.
This patch (Lucene 2.9 only) fakes this by supplying a fake systemId to the
InputSource.
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