net.sourceforge.htmlunit.corejs.javascript.EvaluatorException: Exception: java.lang.NullPointerException in HtmlUnit 2.43

Getting the below exception while calling getPage for url: https://investors.alticeusa.com/investors/alticeusa/results-and-presentations/default.aspx using HtmlUnit 2.43.0 version but version 2.23 is not throwing the exceptions. Exception in thread "main" net.sourceforge.htmlunit.corejs.javascript.EvaluatorException: Exception: java.lang.NullPointerException at net.sourceforge.htmlunit.corejs.javascript.Context.reportRuntimeError(Context.java:1040) at net.sourceforge.htmlunit.corejs.javascript.Context.reportRuntimeError(Context.java:1090) at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.loadStylesheet(CSSStyleSheet.java:410) at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLLinkElement.getSheet(HTMLLinkElement.java:143) at com.gargoylesoftware.htmlunit.html.HtmlLink$1.execute(HtmlLink.java:311) at com.gargoylesoftware.htmlunit.html.HtmlLink.onAllChildrenAddedToPage(HtmlLink.java:321) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:560) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:514) at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.startElement(HTMLTagBalancer.java:773) at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.emptyElement(HTMLTagBalancer.java:820) at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.emptyElement(DefaultFilter.java:145) at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.emptyElement(NamespaceBinder.java:310) at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanStartElement(HTMLScanner.java:2769) at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2117) at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:927) at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:506) at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:459) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.parse(HtmlUnitNekoDOMBuilder.java:760) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parse(HtmlUnitNekoHtmlParser.java:208) at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:283) at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:163) at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:638) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:451) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:368) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:520) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:501) at com.factset.htmlunit.testapp.main(testapp.java:99)

[rbri]

for me it looks like the problem is in your code

if (((response.getStatusCode() != 200) && !url.equalsIgnoreCase(initialUrl))
    && (response.getStatusCode() != 302) && (response.getStatusCode() != 301)) {
    System.out.println("create an empty web response in order to ignore exception due to this : "
            + response.getStatusCode() + " " + response.getStatusMessage() + " " + url);
    response = null;
}
String origCharset = (response.getContentCharset()).toString();

If you code sets the response to null, the next line after the if block will produce the NPE.

[sowjanyaboddeti]

Working now. Thanks for your help.