Sql developer won't connect to internet to check for updates

Hi all,
When I try to check the latest updates, Sql Developer (2.1.0.63) says it can't access to Internet in order to search for updates.
The credentials that I gave are correct (proxy, port, username, password) : when I click on the "Test Proxy" button, it says everything is OK.
But when I click on the "OK" button, it won't connect.
Then I click on the "Cancel" button, and check the details and get the following stack trace:
org.xml.sax.SAXParseException: <Line 6, Column 39>: XML-20125: (Fatal Error) Attribute value should start with quote.
     at oracle.xml.parser.v2.XMLError.flushErrorHandler(XMLError.java:422)
     at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:287)
     at oracle.xml.parser.v2.NonValidatingParser.parseAttrValue(NonValidatingParser.java:1645)
     at oracle.xml.parser.v2.NonValidatingParser.parseAttr(NonValidatingParser.java:1550)
     at oracle.xml.parser.v2.NonValidatingParser.parseAttributes(NonValidatingParser.java:1483)
     at oracle.xml.parser.v2.NonValidatingParser.parseElement(NonValidatingParser.java:1322)
     at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:368)
     at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:314)
     at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:225)
     at oracle.javatools.xml.esax.spi.ExtensibleSAXParser.parse(ExtensibleSAXParser.java:65)
     at oracle.ideimpl.webupdate.parser.MasterListParser.parse(MasterListParser.java:47)
     at oracle.ideimpl.webupdate.CheckMasterListRunnable.run(CheckMasterListRunnable.java:148)
     at java.lang.Thread.run(Thread.java:619)
What is wrong ???
Thank you for your help,
Phil.
Edited by: user3182799 on 15 janv. 2010 08:56

Did anybody meet the same problem, please ?

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