Error displayed to Console when empty URL selected in Navigation bar -------------------------------------------------------------------- Key: JBIDE-19284 URL: https://issues.jboss.org/browse/JBIDE-19284 Project: Tools (JBoss Tools) Issue Type: Bug Components: browsersim Affects Versions: 4.3.0.Alpha1 Environment: 9.0.0.Alpha1-v20150216-1042-B11 Oracle JDK Reporter: Vlado Pakan Assignee: Konstantin Marmalyukov Fix For: 4.3.0.Alpha2 # Open BrowserSim # Clear Navigation Bar and hit Enter ERROR: Error in Console view displayed {noformat} Feb 17, 2015 10:00:24 PM com.sun.webkit.network.URLLoader doRun WARNING: Unexpected error java.lang.IllegalArgumentException: protocol = http host = null at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:176) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1097) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:931) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439) at com.sun.webkit.network.URLLoader.close(URLLoader.java:553) at com.sun.webkit.network.URLLoader.doRun(URLLoader.java:153) at com.sun.webkit.network.URLLoader.access$000(URLLoader.java:43) at com.sun.webkit.network.URLLoader$1.run(URLLoader.java:107) at com.sun.webkit.network.URLLoader$1.run(URLLoader.java:104) at java.security.AccessController.doPrivileged(Native Method) at com.sun.webkit.network.URLLoader.run(URLLoader.java:104) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) {noformat} Maybe it should just change the URL to about:blank