htmlunit-user

[Htmlunit-user] OutOfMemoryError: Java heap space

[gaurab.pradhan <mer...@gm...>]

Dear All,
While processing JavaScript and AJAX site i am getting and out of memory
exception. The code was working perfectly for last 1-2 years, from last
month i am receiving this exception.
I have tired many option like by closing all the windows after completing
the task.
Can anyone help me?? 
Thanks in advance
at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:162)
	at
com.gargoylesoftware.htmlunit.html.DomNode.printChildrenAsXml(DomNode.java:826)
	at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:172)
	at
com.gargoylesoftware.htmlunit.html.DomNode.printChildrenAsXml(DomNode.java:826)
	at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:172)
	at
com.gargoylesoftware.htmlunit.html.DomNode.printChildrenAsXml(DomNode.java:826)
	at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:172)
	at
com.gargoylesoftware.htmlunit.html.DomNode.printChildrenAsXml(DomNode.java:826)
	at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:172)
	at
com.gargoylesoftware.htmlunit.html.DomNode.printChildrenAsXml(DomNode.java:826)
	at
com.gargoylesoftware.htmlunit.html.DomElement.printXml(DomElement.java:172)
	at com.gargoylesoftware.htmlunit.html.DomNode.asXml(DomNode.java:799)
	at com.gargoylesoftware.htmlunit.SgmlPage.asXml(SgmlPage.java:213)



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Re: [Htmlunit-user] OutOfMemoryError: Java heap space

[asashour <asa...@ya...>]

Hi,

Can you please provide your complete case?

Ahmed



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Re: [Htmlunit-user] OutOfMemoryError: Java heap space

[gaurab.pradhan <mer...@gm...>]

Dear Ahmed,
Thanks for your reply.
I am trying to parse a JavaScript and AJAX site.
At first i need to login it and with same login session i have to parse more
than 300 links and download required information in a loop.
I have used htmlunit for this project and it was working fine for last 2
years and now i am facing the Out of memory exception.
Currently i am using htmlunit 2.17. 
My case is following :
public class Test { 
	static WebClient client;

    static {
       
LogFactory.getFactory().setAttribute("org.apache.commons.logging.Log",
"org.apache.commons.logging.impl.NoOpLog");
       
java.util.logging.Logger.getLogger("com.gargoylesoftware.htmlunit").setLevel(Level.OFF);
       
java.util.logging.Logger.getLogger("org.apache.commons.httpclient").setLevel(Level.OFF);
       
java.util.logging.Logger.getLogger("com.gargoylesoftware").setLevel(Level.OFF);
        client = new WebClient(BrowserVersion.FIREFOX_38);
        include(); // this method contains
client.waitForBackgroundJavaScript(10000); etc etc
    }
	 public boolean login() throws IOException, InterruptedException {
        HtmlPage page1 = client.getPage(loginUrl);
        Thread.sleep(5000);
        HtmlForm form = page1.getFirstByXPath("//form");
        form.getInputByName("username").setValueAttribute("username");
        form.getInputByName("password").setValueAttribute("passworf");
        HtmlPage homePage = form.getInputByValue("login").click();
        homePage = null;
        client.close();
        return true;
    }
	
	    public void parseData(String url) {
        try {
            while (flag) {
			HtmlPage homePage = client.getPage(url);
                for () {
                        // some process and again i have to use same client
to access sub links.
                    } 
            } 
        } catch (Exception e) {
            e.printStackTrace();
        }
        closeAll();
    }
}
I found webClient is occupying more space.
<http://htmlunit.10904.n7.nabble.com/file/n36833/abc.jpg> 
Thanks,
Gaurab Pradhan



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