android:how to get javascript executed html on javacode?

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http://stackoverflow.com – I want to get html from web-site to parse. but i dont have any good ways. I tried selenium/ cant run on android with error. htmlunit/ is also. Webview/ i want not to appear the browser. so i set view.GONE to webview. then how to get html from webview? Please teach me good way to get executed html on android/java. Thank you (HowTos)