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This issue was reported manually by jan.kurnatowski. It already has 1 duplicates Build: NetBeans IDE Dev (Build 201507030001) VM: Java HotSpot(TM) 64-Bit Server VM, 25.45-b02, Java(TM) SE Runtime Environment, 1.8.0_45-b15 OS: Windows 8 User Comments: jan.kurnatowski: Trying to reproduce exceptions #784278 and #784284. It seems that problem is not related to Microsoft Windows Firewall, but with exception from WildFly. Stacktrace: java.io.IOException: Invalid response at org.xnio.http.HttpUpgradeParser.parseVersion(HttpUpgradeParser.java:157) at org.xnio.http.HttpUpgradeParser.parse(HttpUpgradeParser.java:55) at org.xnio.http.HttpUpgrade$HttpUpgradeState$UpgradeResultListener.handleEvent(HttpUpgrade.java:419) at org.xnio.http.HttpUpgrade$HttpUpgradeState$UpgradeResultListener.handleEvent(HttpUpgrade.java:400) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
Created attachment 154481 [details] stacktrace
Created attachment 154482 [details] WildFly log
Caused by: java.net.BindException: Address already in use: bind It looks like the port 9990 is already bound. Could you check your computer ?
(In reply to ehsavoie from comment #3) > Caused by: java.net.BindException: Address already in use: bind > It looks like the port 9990 is already bound. > Could you check your computer ? After some investigation: WildFly needed 9990 port for Web Administration Console, but it was already used by NVIDIA Network Service. I stopped NVIDIA Network Service and tried to reproduce this issue, but WildFly started properly, causing no exception in Netbeans. Thank you.