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I received the following error whilst trying to launch a RuneLite jar on a freshly installed Lubuntu(18.10 64bit):

[main] ERROR net.runelite.launcher.Launcher -error fetching bootstrap

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_faiure at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:128)

I'm assuming I need to install something or adjust a setting as runelite worked perfectly on a Ubuntu installation.

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Bullseye
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  • which java version do you use? java -version also what keystore is that java using? does the keystore trust the cert you try to connect to? – TiloBunt Nov 26 '18 at 02:12
  • @TiloBunt java -version gives the following result:

    openjdk version "11.0.1" 2018-10-16

    OpenJDK Runtime Environment (build 11.0.1+13-Ubuntu-2ubuntu1) OpenJDK 64-Bit Server VM (build 11.0.1+13-Ubuntu-2ubuntu1, mixed mode, sharing)

     – Bullseye Nov 26 '18 at 10:33
  • @TiloBunt I opened the cacerts file located in the java security folder using Portecle and it contains a lot of certificates. I don't know how to see which one would be for RuneLite. – Bullseye Nov 26 '18 at 11:28

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As it turns out, I received that error because I had installed Java 11 which isn't compatible with RuneLite. Therefore I had to downgrade to Java version 8 after which another error occured which was solved by the answer on this link: Assistive technology not found AWTError. Thank you all for your efforts.

Bullseye
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