java.lang.NullPointerException: null

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java.lang.NullPointerException: null
at com.gargoylesoftware.htmlunit.html.XmlSerializer.asXml(XmlSerializer.java:73)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.save(XmlSerializer.java:61)
at com.gargoylesoftware.htmlunit.html.HtmlPage.save(HtmlPage.java:2176)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.getAttributesFor(XmlSerializer.java:174)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.readAttributes(XmlSerializer.java:140)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printOpeningTag(XmlSerializer.java:120)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:90)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.asXml(XmlSerializer.java:80)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.save(XmlSerializer.java:61)
at com.gargoylesoftware.htmlunit.html.HtmlPage.save(HtmlPage.java:2176)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.getAttributesFor(XmlSerializer.java:174)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.readAttributes(XmlSerializer.java:140)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printOpeningTag(XmlSerializer.java:120)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:90)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.printXml(XmlSerializer.java:100)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.asXml(XmlSerializer.java:80)
at com.gargoylesoftware.htmlunit.html.XmlSerializer.save(XmlSerializer.java:61)
at info.fmro.betty.utility.WebScraperMethods.savePage(WebScraperMethods.java:70)
at info.fmro.betty.utility.WebScraperMethods.savePage(WebScraperMethods.java:58)
at info.fmro.betty.utility.WebScraperMethods.getPage(WebScraperMethods.java:191)

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