Fails to connect to X

[dfl1955]

I have downloaded your 5.2.3 and am trying to run this on Raspbian Desktop

When run as super user, I get an error fails to connect to X.

Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':10.0' as the value of the DISPLAY variable.
    at java.desktop/sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)

This error does not occur when running the Java Xclock app, nor if I call xeyes.

The attached log includes the java stack dump, the current $DISPLAY value, the output from uname, env | grep X and apt-cache show xfce4. and cat /etc/*release.

Is this a code bug or a configuration error?

java.log

Dave

[Pitterling]

No, clue. Just searched the web and found this

https://stackoverflow.com/questions/10165761/java-cant-connect-to-x11-window-server-using-localhost10-0-as-the-value-of-t

Any suggestion helpful?

[dfl1955]

Yes, the advice about using xhost was useful, but I get another error. Can you see if you can help?

java.net.MalformedURLException at java.base/java.net.URL.<init>(URL.java:679)

errorlog2.txt

I wonder if it's the location of the sar database that's the problem. I am now testing this on Ubuntu 22.04 on Virtual Box.

[Pitterling]

Search issues here for "SAXParser". You need to use a snapshot version instead of 5.2.3.

Snapshot versions are also available on the release page.

[dfl1955]

I downloaded the most recent snapshot and it seems to work. It generates an error as it boots which I have attached, but this is now working for me, Thank you for your help.

`2023-01-15 18:51:17,495 main ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.FileAppender for element File: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.FileAppender java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.FileAppender at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:234) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:134) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1002) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:942) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:934) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:552) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:241) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:288) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:622) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:695) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:712) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:267) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:155) at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:45) at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:48) at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383) at net.atomique.ksar.Main.(Main.java:21)

2023-01-15 18:51:17,500 main ERROR Null object returned for File in appenders. 2023-01-15 18:51:17,517 main ERROR Unable to locate appender "MyFile" for logger config "root" `

[Pitterling]

Might be related to missing write permission for the log file ksar_all.log which is created in the same directory where the jar is located.