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8288436: Improve Xalan supports

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Reviewed-by: smarks, ahgross, rhalade, lancea, naoto
This commit is contained in:
Joe Wang 2023-01-19 00:53:14 +00:00 committed by Henry Jen
parent b1c34c03d7
commit 2e5700a92c
1 changed files with 16 additions and 4 deletions
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20
src/java.xml/share/classes/com/sun/org/apache/xml/internal/utils/XMLReaderManager.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2007, 2023, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
@ -37,13 +37,15 @@ import org.xml.sax.XMLReader;
* Creates XMLReader objects and caches them for re-use.
* This class follows the singleton pattern.
*
* @LastModified: Jan 2022
* @LastModified: Jan 2023
*/
public class XMLReaderManager {
private static final XMLReaderManager m_singletonManager =
new XMLReaderManager();
private static final String property = "org.xml.sax.driver";
private final static String LEXICAL_HANDLER_PROPERTY =
"http://xml.org/sax/properties/lexical-handler";
/**
* Cache of XMLReader objects
@ -186,12 +188,22 @@ public class XMLReaderManager {
*/
public synchronized void releaseXMLReader(XMLReader reader) {
// If the reader that's being released is the cached reader
// for this thread, remove it from the m_isUse list.
// for this thread, remove it from the m_inUse list.
ReaderWrapper rw = m_readers.get();
if (rw.reader == reader && reader != null) {
if (rw != null && rw.reader == reader && reader != null) {
// reset the reader for reuse
reader.setContentHandler(null);
reader.setDTDHandler(null);
reader.setEntityResolver(null);
try {
reader.setProperty(LEXICAL_HANDLER_PROPERTY, null);
} catch (SAXNotRecognizedException | SAXNotSupportedException ex) {
// shouldn't happen as the property is supported.
}
m_inUse.remove(reader);
}
}
/**
* Return the state of the services mechanism feature.
*/