title: How to tell htmlunit to ignore certain errors
body: <p>I am currently trying out HtmlUnit. I want to fill out an form and then submit it. But this results in an error, which seems to be caused by a file not being accessible, which results in a connection reset being thrown.
  How can I suppress this, as this is not crucial considering the loading process of the whole website?
  It doesn't seem to affect the program, though, I just want it to be silenced.</p>
  
  <pre><code>Apr 05, 2012 12:25:13 PM com.gargoylesoftware.htmlunit.html.HtmlPage loadExternalJavaScriptFile
  Schwerwiegend(severe): Error loading JavaScript from [*link*].
  java.net.SocketException: Connection reset
      at java.net.SocketInputStream.read(Unknown Source)
      at java.net.SocketInputStream.read(Unknown Source)
      at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:149)
      at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:110)
      at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:264)
      at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:98)
      at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:252)
      at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:281)
      at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:247)
      at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:219)
      at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:298)
      at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
      at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
      at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:776)
      at com.gargoylesoftware.htmlunit.HttpWebConnection.getResponse(HttpWebConnection.java:152)
      at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseFromWebConnection(WebClient.java:1439)
      at com.gargoylesoftware.htmlunit.WebClient.loadWebResponse(WebClient.java:1358)
      at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1008)
      at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:950)
      at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:349)
      at com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:230)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:642)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$400(JavaScriptEngine.java:79)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:590)
      at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:537)
      at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:538)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:499)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:474)
      at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:870)
      at com.gargoylesoftware.htmlunit.html.HtmlScript.executeInlineScriptIfNeeded(HtmlScript.java:302)
      at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:368)
      at com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:230)
      at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:240)
      at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:598)
      at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
      at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:556)
      at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1142)
      at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1044)
      at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)
      at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:329)
      at org.cyberneko.html.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3018)
      at org.cyberneko.html.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2005)
      at org.cyberneko.html.HTMLScanner.scanDocument(HTMLScanner.java:908)
      at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:499)
      at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:452)
      at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
      at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.parse(HTMLParser.java:789)
      at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:225)
      at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:179)
      at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:221)
      at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:106)
      at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:433)
      at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2187)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:625)
      at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:707)
      at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1246)
      at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1195)
      at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1158)
      at com.gargoylesoftware.htmlunit.html.HtmlImageInput.click(HtmlImageInput.java:138)
      at com.gargoylesoftware.htmlunit.html.HtmlImageInput.click(HtmlImageInput.java:99)
      at com.tronicguard.discovery.WebsiteManipulatorImplementation.&lt;init&gt;(WebsiteManipulatorImplementation.java:71)
      at Main.main(Main.java:10)
  </code></pre>