htmlunit out of memoery error:java heap space

标签：

程序            WebClient webClient = new WebClient(BrowserVersion.CHROME);
		webClient.getOptions().setJavaScriptEnabled(false);
		webClient.getOptions().setCssEnabled(false);
		HtmlPage page;
		try {
			page = webClient.getPage("http://www.taolife.com.cn/");
			System.out.print(page.asText());
		} catch (FailingHttpStatusCodeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

bug：

1Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
	at java.lang.Class.getDeclaredFields0(Native Method)
	at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
	at java.lang.Class.getField0(Class.java:2975)
	at java.lang.Class.getField(Class.java:1701)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.configureConstants(JavaScriptEngine.java:612)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.init(JavaScriptEngine.java:271)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$000(JavaScriptEngine.java:105)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$1.run(JavaScriptEngine.java:173)
	at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
	at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:513)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.initialize(JavaScriptEngine.java:184)
	at com.gargoylesoftware.htmlunit.WebClient.initialize(WebClient.java:1008)
	at com.gargoylesoftware.htmlunit.WebWindowImpl.setEnclosedPage(WebWindowImpl.java:135)
	at com.gargoylesoftware.htmlunit.html.FrameWindow.setEnclosedPage(FrameWindow.java:105)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:221)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:199)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:272)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:160)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:476)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:350)
	at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPageIfPossible(BaseFrameElement.java:184)
	at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPage(BaseFrameElement.java:122)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.loadFrames(HtmlPage.java:1945)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:227)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:483)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:350)
	at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPageIfPossible(BaseFrameElement.java:184)
	at com.gargoylesoftware.htmlunit.html.BaseFrameElement.loadInnerPage(BaseFrameElement.java:122)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.loadFrames(HtmlPage.java:1945)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:227)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:483)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:350)

修改运行参数：-Xms1024m -Xmx1024m，依旧报错。

修改

webClient.getOptions().setJavaScriptEnabled(false);

程序正常运行；

分析：

估计htmunit采用的javascript解析器存在问题，陷入死循环耗尽内存；

因项目时间问题，暂时采集true方案，回头用内存监控工具 jconsole或者eclipse memoery analyzer找出是哪个模块出问题。

htmlunit out of memoery error:java heap space

标签：

原文地址：http://my.oschina.net/u/856051/blog/502775