java.util.ConcurrentModificationException

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  • java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) at java.util.ArrayList$Itr.next(ArrayList.java:831) at com.gargoylesoftware.htmlunit.html.HtmlPage.cleanUp(HtmlPage.java:337) at com.gargoylesoftware.htmlunit.TopLevelWindow.close(TopLevelWindow.java:122) at com.gargoylesoftware.htmlunit.WebClient.close(WebClient.java:1820)

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