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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 com.gargoylesoftware.htmlunit.html.HtmlPage.save(HtmlPage.java:2176) 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)