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oracle.ide.webbrowser.HttpPing$PingFailedException: Unable to connect at oracle.ide.webbrowser.HttpPing.convertToPingFailedException(HttpPing.java:207) at oracle.ide.webbrowser.HttpPing.access$400(HttpPing.java:21) at oracle.ide.webbrowser.HttpPing$PingRunnable.run(HttpPing.java:125) at oracle.ide.webbrowser.ProxyOptions.doTask(ProxyOptions.java:1039) at oracle.ide.webbrowser.HttpPing.ping(HttpPing.java:78) at oracle.ideimpl.webupdate.wizard.UpdateSourcePage$7.run(UpdateSourcePage.java:472) at java.lang.Thread.run(Thread.java:744)