Exception while starting Ready API 1.2

Hello

we are currently evaluating the ReadyAPI 1.2, while starting the application the keep throwing the following exception:

Caused by: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
at com.btr.proxy.selector.pac.UrlPacScriptSource.setupHTTPConnection(UrlPacScriptSource.java:189)
at com.btr.proxy.selector.pac.UrlPacScriptSource.downloadPacContent(UrlPacScriptSource.java:120)
at com.btr.proxy.selector.pac.UrlPacScriptSource.getScriptContent(UrlPacScriptSource.java:60)
at com.btr.proxy.selector.pac.UrlPacScriptSource.isScriptValid(UrlPacScriptSource.java:254)
at com.btr.proxy.util.ProxyUtil.buildPacSelectorForUrl(ProxyUtil.java:77)
at com.btr.proxy.search.browser.ie.IEProxySearchStrategy.createPacSelector(IEProxySearchStrategy.java:89)
at com.btr.proxy.search.browser.ie.IEProxySearchStrategy.getProxySelector(IEProxySearchStrategy.java:44)
at com.btr.proxy.search.desktop.win.WinProxySearchStrategy.getProxySelector(WinProxySearchStrategy.java:37)
at com.btr.proxy.search.desktop.DesktopProxySearchStrategy.getProxySelector(DesktopProxySearchStrategy.java:34)
at com.btr.proxy.search.ProxySearch.getProxySelector(ProxySearch.java:193)
at com.eviware.soapui.impl.wsdl.support.http.ProxyUtils.setGlobalProxy(ProxyUtils.java:176)
at com.eviware.soapui.model.propertyexpansion.PropertyExpander.<clinit>(PropertyExpander.java:71)
... 51 more

it seems that it trys to figure out the local proxy setting, is there any way to disable it? Or configure it with customized proxy setting?

Thanks,

Stellit