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Old 24.12.2009, 16:34
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Default Net problem: java.net.SocketException: Invalid argument

24/12/09 14:05:43 - JDClassLoader-> Look and Feel JAR loaded: /home/enrgar/Dropbox/jdownloader/libs/laf/syntheticaBlackEye.jar
EXCEPTION 24/12/09 14:05:43 - JDLogger-> SEVERE Exception occurred
java.lang.RuntimeException: Unexpected IOException while starting JUnique/Server for id "jd.Main"
at it.sauronsoftware.junique.Server.start(Server.java:120)
at it.sauronsoftware.junique.JUnique.acquireLock(JUnique.java:149)
at jd.Main.main(Unknown Source)
Caused by: java.net.SocketException: Invalid argument
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:336)
at java.net.ServerSocket.bind(ServerSocket.java:336)
at java.net.ServerSocket.bind(ServerSocket.java:294)
at it.sauronsoftware.junique.Server.start(Server.java:110)
... 2 more
24/12/09 14:05:43 - Main-> Instance Handling not possible!
24/12/09 14:05:43 - DatabaseConnector-> Loading database
24/12/09 14:05:43 - DatabaseConnector-> Checking database
24/12/09 14:05:44 - Main-> init Splash


/etc/hosts localhost jack-sparrow

Anyone nows why jd is not resolving localhost?

Last edited by don_ousian; 25.12.2009 at 12:11.
Old 25.12.2009, 12:09
Posts: n/a
Default OK Solved

Ok, somehow my system had changed behavior from IPv4 to IPv6.
I've forced java to use IPv4 and it works again.

/usr/bin/java -Djava.net.preferIPv4Stack=true -jar "YOUR_PATH/jdownloader/JDownloader.jar"
Old 25.12.2009, 15:58
Posts: n/a
Thumbs up Thnx

Thanks for your solution.
I had the same problem the last days. Does anybody know where this problem comes from?
I still have some problems with other programs running on my machine.

Best regards
Old 12.01.2010, 11:22
Posts: n/a

If you're debian related take a look at /etc/sysctl.d/bindv6only.conf

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