Mage: Java not found ?!?

[VictorBaptista99]

Been around all day w this issue. Had to reinstall Xmage and for the first time it happened to me despite using the program often... dunno why but the java folder has nothing in it. And the Xmage launcher dont let me launch client. only lets me update and check versions. When i click on both just loops again and again to the java not found...

here's the writing on the notepad:

ERROR 2017-05-23 18:02:34,217 Error: =>[SwingWorker-pool-1-thread-2] DownloadTask.download
java.io.FileNotFoundException: http://download.oracle.com/otn-pub/java/jdk/8u102-b14/jre-8u102-windows-x64.tar.gz?AuthParam=1495562672_d91c8da463ccb6e8f0d1d967c525b07b
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.xmage.launcher.Downloader.connect(Downloader.java:38)
at com.xmage.launcher.DownloadTask.download(DownloadTask.java:64)
at com.xmage.launcher.XMageLauncher$UpdateTask.updateJava(XMageLauncher.java:735)
at com.xmage.launcher.XMageLauncher$UpdateTask.doInBackground(XMageLauncher.java:713)
at com.xmage.launcher.XMageLauncher$UpdateTask.doInBackground(XMageLauncher.java:701)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: http://download.oracle.com/otn-pub/java/jdk/8u102-b14/jre-8u102-windows-x64.tar.gz?AuthParam=1495562672_d91c8da463ccb6e8f0d1d967c525b07b
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at com.xmage.launcher.Downloader.connect(Downloader.java:27)
... 10 more
ERROR 2017-05-23 18:02:34,217 Error: =>[SwingWorker-pool-1-thread-2] XMageLauncher$UpdateTask.updateJava
java.io.FileNotFoundException: C:UsersUtlzadorDesktopxmage.dl (O sistema não conseguiu localizar o ficheiro especificado)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.(Unknown Source)
at com.xmage.launcher.DownloadTask.extract(DownloadTask.java:131)
at com.xmage.launcher.XMageLauncher$UpdateTask.updateJava(XMageLauncher.java:740)
at com.xmage.launcher.XMageLauncher$UpdateTask.doInBackground(XMageLauncher.java:713)
at com.xmage.launcher.XMageLauncher$UpdateTask.doInBackground(XMageLauncher.java:701)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Anyone w same problem? thanks

[jholutiak216]

I am having the same problem tired deleting everything, but still won't let me launch client or server, only update and check version.

[LeoBuenoo]

I am having the same problem tired deleting everything, but still won't let me launch client or server, only update and check version.²

[VictorBaptista99]

So, how to fix this? i clearly have Java up to date

[kmcculloch]

Looks like the download from Oracle isn't working. I figured out how to do it by hand on Mac OS X. Probably similar for other systems.

First, run the XMage launcher as usual and pay attention to the file name at the end of the file download link. In my case, it's jre-8u102-macosx-x64.tar.gz:

Also note the "Java version available" string, which is currently 1.8.0_102:

Quit out of the launcher.

So now you're at the point where you've got all the Xmage code and an empty "java" folder. Go to Oracle's download archive and find the file that corresponds to the file name you got from the download link. Be sure you get the right one. I had to click the "Accept License" and also log in with an Oracle account to download the file.

Unzip the archive and put the resulting folder (in my case, "jre1.8.0_102.jre") inside your "java" folder.

Finally, edit the installed.properties file to tell the launcher which version of java is there. (Otherwise it will assume that there's no java and will try to download it again.) Find the line that says "java.version=" and add the "Java version available" string from the launcher window. It should now look something like this:

#---XMage Properties---
#Thu May 25 17:42:17 EDT 2017
xmage.launcher.version=0.3.8
java.version=1.8.0_102
xmage.client.console=true
xmage.launcher.guisize=21
xmage.client.javaopts=-Xms256m -Xmx512m -XX\:MaxPermSize\=384m -XX\:+UseConcMarkSweepGC -XX\:+CMSClassUnloadingEnabled
xmage.home=http\://xmage.de/xmage
xmage.server.console=true
xmage.version=1.4.23V5 (2017-05-18)
xmage.server.javaopts=-Xms256M -Xmx1G -XX\:MaxPermSize\=384m
xmage.torrent.downrate=0
xmage.torrent.uprate=50
xmage.torrent.use=false

You should now be able to open the launcher again and launch the client.

Good luck!

[drmDev]

Alternatively, in your XMage installation directory, run the startMage batch file instead of using the launcher.

[jholutiak216]

@drmDev This is something I also had to do after I get the java files in the folder

[VictorBaptista99]

Yes. Worked for me @kmcculloch . thanks. Should i need to reinstall the whole thing again will i need to do this back to back? Hope not. Thanks you guys

[VictorBaptista99]

@drmDev Yes been using Xmage that way, but feels bad :) also i think you cant change from .DE server from there or maybe was just my problem. Anyway thanks

[richardhedberg]

@kmcculloch

Trying to get the client to work on OS X, followed your steps but launching the client in the launcher just opens the console and it's all blank. If i try to open the client via startClient.command it gives me this error message:

Last login: Tue Jun  6 14:59:00 on ttys001
username-MacBook-Pro:~ username$ /Users/username/Downloads/xMage/xmage/mage-client/startClient.command ; exit;
-bash: /Users/username/Downloads/xMage/xmage/mage-client/startClient.command: /bin/sh^M: bad interpreter: No such file or directory
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Process completed]

If I change the path in the startClient.command to the full adress instead of using ./ it launches the client but with a ton of error and I can't do anything in the client.

Last login: Tue Jun  6 15:01:09 on ttys001
username-MacBook-Pro:~ username$ java -Xms256m -Xmx512m -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -jar /Users/username/Downloads/xMage/xmage/mage-client/lib/mage-client-1.4.23.jar
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
INFO  2017-06-06 15:07:39,403 Starting MAGE client version 1.4.23V5                                                      =>[main] MageFrame.main 
INFO  2017-06-06 15:07:39,406 Logging level: INFO                                                                        =>[main] MageFrame.main 
ERROR 2017-06-06 15:07:42,727 Couldn't rename mana symbols!                                                              =>[AWT-EventQueue-0] ManaSymbols.renameSymbols 
ERROR 2017-06-06 15:07:42,729 Error for symbol:0                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,729 Error for symbol:1                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,729 Error for symbol:10                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,729 Error for symbol:11                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,729 Error for symbol:12                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,729 Error for symbol:15                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,730 Error for symbol:16                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,730 Error for symbol:2                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,730 Error for symbol:3                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,730 Error for symbol:4                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,731 Error for symbol:5                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,731 Error for symbol:6                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,731 Error for symbol:7                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,732 Error for symbol:8                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,732 Error for symbol:9                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,733 Error for symbol:B                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,733 Error for symbol:BG                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,733 Error for symbol:BR                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,733 Error for symbol:G                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,733 Error for symbol:GU                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:GW                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:R                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:RG                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:RW                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:S                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:T                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,734 Error for symbol:U                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,735 Error for symbol:UB                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,735 Error for symbol:UR                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,735 Error for symbol:W                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,735 Error for symbol:WB                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,736 Error for symbol:WU                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,736 Error for symbol:WP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,736 Error for symbol:UP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,736 Error for symbol:BP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,737 Error for symbol:RP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,737 Error for symbol:GP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,737 Error for symbol:X                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,737 Error for symbol:C                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,737 Error for symbol:E                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:0                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:1                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:10                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:11                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:12                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:15                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,738 Error for symbol:16                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:2                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:3                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:4                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:5                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:6                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:7                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,739 Error for symbol:8                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:9                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:B                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:BG                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:BR                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:G                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,740 Error for symbol:GU                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:GW                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:R                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:RG                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:RW                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:S                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,741 Error for symbol:T                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,742 Error for symbol:U                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,742 Error for symbol:UB                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,742 Error for symbol:UR                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,742 Error for symbol:W                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,742 Error for symbol:WB                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:WU                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:WP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:UP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:BP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:RP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,743 Error for symbol:GP                                                                        =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,744 Error for symbol:X                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,744 Error for symbol:C                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
ERROR 2017-06-06 15:07:42,744 Error for symbol:E                                                                         =>[AWT-EventQueue-0] ManaSymbols.loadSymbolsImages 
INFO  2017-06-06 15:07:43,428 Loading plugins...                                                                         =>[AWT-EventQueue-0] Plugins.loadPlugins 
INFO  2017-06-06 15:07:43,471 Done.                                                                                      =>[AWT-EventQueue-0] Plugins.loadPlugins 
INFO  2017-06-06 15:07:44,033 Client start up time: 4 seconds                                                            =>[AWT-EventQueue-0] MageFrame.lambda$new$2 
FATAL 2017-06-06 15:07:44,034 Config error                                                                               =>[AWT-EventQueue-0] Config.<clinit> 
java.io.FileNotFoundException: config/config.properties (No such file or directory)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at mage.client.util.Config.<clinit>(Config.java:63)
    at mage.client.dialog.ConnectDialog.showDialog(ConnectDialog.java:105)
    at mage.client.MageFrame.lambda$new$2(MageFrame.java:314)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
FATAL 2017-06-06 15:07:44,037 MAGE Client UI error                                                                       =>[AWT-EventQueue-0] EDTExceptionHandler.handle 
java.lang.ExceptionInInitializerError
    at mage.client.dialog.ConnectDialog.showDialog(ConnectDialog.java:105)
    at mage.client.MageFrame.lambda$new$2(MageFrame.java:314)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.NumberFormatException: null
    at java.lang.Integer.parseInt(Integer.java:542)
    at java.lang.Integer.parseInt(Integer.java:615)
    at mage.client.util.Config.<clinit>(Config.java:68)
    ... 16 more

Any idea of what might be wrong?

[Murqulator]

@kmcculloch I downloaded the specific version of Java but can't seem to edit the installed Properties file. Tried with text edit and saved it but when i open the file again it is back to it's original state. How did you edit the file?

[TheNoLifeKing121]

having the same issue with linuix

[drmDev]

Though does not resolve this issue with the launcher, the alternative is to circumvent using the launcher altogether. Follow the steps outlined here to do so:
https://www.youtube.com/watch?v=FL89GFJv0_A

[JayDi85]

It's can be a java ca certificates problem for linux machines -- you can't download https links (new java version or svg images from scryfall).

Need to manually update cacerts file, setup JAVA_HOME and java options to run with that keystore. Command line to launch mage-client (example to run from startClient.command in mage-client folder):
java -Djavax.net.ssl.trustStore=$JAVA_HOME/jre/lib/security/cacerts -Djavax.net.ssl.trustStorePassword="changeit" -Xms256m -Xmx512m -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -jar ./lib/mage-client-1.4.26.jar

You can read/download full instruction here.