htmlunit When used in Android, an exception is thrown:

No static field INSTANCE of type Lorg/apache/http/conn/ssl/AllowAllHostnameVerifier;
in class Lorg/apache/http/conn/ssl/AllowAllHostnameVerifier;
or its superclasses (declaration of 'org.apache.http.conn.ssl.AllowAllHostnameVerifier' appears in /system/framework/framework.jar:classes2.dex)

The reason is that httpclient is not available in android。