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Posted to j-dev@xerces.apache.org by "David Costanzo (JIRA)" <xe...@xml.apache.org> on 2016/06/21 13:59:58 UTC
[jira] [Updated] (XERCESJ-1574) Problem with detected encoding for
UTF-16 encoded as Unicode Little
[ https://issues.apache.org/jira/browse/XERCESJ-1574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Costanzo updated XERCESJ-1574:
------------------------------------
Fix Version/s: 2.12.0
> Problem with detected encoding for UTF-16 encoded as Unicode Little
> -------------------------------------------------------------------
>
> Key: XERCESJ-1574
> URL: https://issues.apache.org/jira/browse/XERCESJ-1574
> Project: Xerces2-J
> Issue Type: Bug
> Components: DOM (Level 3 Core)
> Affects Versions: 2.11.0
> Reporter: Radu Coravu
> Assignee: Michael Glavassevich
> Fix For: 2.12.0
>
> Attachments: patch.txt
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> I have the following test case:
> ByteArrayInputStream bis = new ByteArrayInputStream(
> "<?xml version=\"1.0\" encoding=\"UTF-16\"?> <a/>".getBytes("UnicodeLittle"));
> InputSource is = new InputSource(bis);
> DOMParser dp = new DOMParser();
> dp.parse(is);
> assertEquals("UTF-16LE", dp.getDocument().getInputEncoding());
> The input stream is encoded as "UnicodeLittle" and " dp.getDocument().getInputEncoding()" should return "UTF-16LE" (at least it did so in the previous Xerces version). Right now it returns "UTF-16" regardless of the byte order mark in the input stream.
> So a developer using the information from "dp.getDocument().getInputEncoding()" information does not know how to save the document in order to preserve the same BOM.
> This problem is related to the modifications which were made in the XMLEntityManager related to encoding detection.
> As a proposed modification, in the method:
> org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(String, XMLInputSource, boolean, boolean)
> before the code:
> fCurrentEntity = new ScannedEntity(name,....
> we could add the following code:
> if("UTF-16".equals(encoding)) {
> if(isBigEndian != null) {
> if(isBigEndian) {
> encoding = "UTF-16BE";
> } else {
> encoding = "UTF-16LE";
> }
> }
> }
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