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OpenRadar error

OpenRadar is a standalone radar screen which connects to the FlightGear multiplayer servers. It is currently being developed.

Re: OpenRadar error

Postby RJ5576 » Thu May 24, 2018 1:25 am

So it appears that you can execute programs from storage and data directories.
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Re: OpenRadar error

Postby wkitty42 » Thu May 24, 2018 7:27 am

i've just noticed that the error reported and the filename given are different... the error report says "OpenRadar.jar" but the file name is "openradar.jar"... CaSe Is SiGnIfIcAnT...
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: OpenRadar error

Postby Neodex » Thu May 24, 2018 6:48 pm

wkitty42 wrote in Thu May 24, 2018 7:27 am:i've just noticed that the error reported and the filename given are different... the error report says "OpenRadar.jar" but the file name is "openradar.jar"... CaSe Is SiGnIfIcAnT...


The file still opened and then gave me the error when using the proper case.
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Re: OpenRadar error

Postby wkitty42 » Thu May 24, 2018 7:15 pm

ok so are we understanding correctly?
    1. you downloaded the openradar.zip file into a directory
    2. you went into that directory and unzipped the openradar.zip contents (openradar.jar) into that same directory
    3. you did the chmod to add the executable attribute to the newly unzipped jar file
    4. attempted to start the jar with "java -jar <file>.jar"
    5. you get the error about not being executable
is that all correct?

can you also post the version of your java?
Code: Select all
$ java -version

java version "1.7.0_171"
OpenJDK Runtime Environment (IcedTea 2.6.13) (7u171-2.6.13-0ubuntu0.14.04.2)
OpenJDK 64-Bit Server VM (build 24.171-b02, mixed mode)
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: OpenRadar error

Postby Neodex » Thu May 24, 2018 9:50 pm

Im now getting the following error upon running the java -jar command: Error: Unable to access jarfile OpenRadar.jar

My java version is:

java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
Last edited by bugman on Fri May 25, 2018 12:25 pm, edited 1 time in total.
Reason: Please do not quote the entire previous post.
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Re: OpenRadar error

Postby bugman » Fri May 25, 2018 12:29 pm

This is starting to sound like a disk stability issue. Could you scan your disk and check for bad sectors? It's probably not the case, but the errors you see are also no common.

Regards,

Edward
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Re: OpenRadar error

Postby Neodex » Fri May 25, 2018 12:58 pm

bugman wrote in Fri May 25, 2018 12:29 pm:This is starting to sound like a disk stability issue. Could you scan your disk and check for bad sectors? It's probably not the case, but the errors you see are also no common.

Regards,

Edward


Ive given it a scan, apparently the disk is in good condition
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Re: OpenRadar error

Postby wkitty42 » Fri May 25, 2018 3:45 pm

in your initial report, you said you "extract the zip and open the jar"... what do you mean by "open the jar"?? do you mean looking inside it??
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: OpenRadar error

Postby Neodex » Fri May 25, 2018 6:37 pm

I meant right clicking and clicking open/running the java -jar command in terminal
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Re: OpenRadar error

Postby wkitty42 » Sat May 26, 2018 4:03 pm

ok... that's really weird, though... surely there are other mac users running openradar?
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: OpenRadar error

Postby bugman » Sat May 26, 2018 9:33 pm

What if you download the OpenRadar.jar file directly rather than the zip file? I'm unfortunately out of ideas.

Regards,
Edward
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Re: OpenRadar error

Postby Neodex » Sun May 27, 2018 4:54 pm

bugman wrote in Sat May 26, 2018 9:33 pm:What if you download the OpenRadar.jar file directly rather than the zip file? I'm unfortunately out of ideas.

Regards,
Edward


Doesn't work either.. Damn..
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Re: OpenRadar error

Postby wkitty42 » Sun May 27, 2018 6:03 pm

and that's after opening a terminal and changing directory to the downloads area?

Code: Select all
cd /Users/Neodex/Downloads/OpenRadar
chmod +x OpenRadar.jar
java -jar OpenRadar.jar


what does "doesn't work" mean? what error(s) do you get if you follow my command sequence above?
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: OpenRadar error

Postby bugman » Sun May 27, 2018 6:16 pm

Maybe there.is a test Java .jar file somewhere that can be used to check if your Java is set up correctly?

Regards,
Edward
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Re: OpenRadar error

Postby Neodex » Tue May 29, 2018 6:57 pm

wkitty42 wrote in Sun May 27, 2018 6:03 pm:and that's after opening a terminal and changing directory to the downloads area?

Code: Select all
cd /Users/Neodex/Downloads/OpenRadar
chmod +x OpenRadar.jar
java -jar OpenRadar.jar


what does "doesn't work" mean? what error(s) do you get if you follow my command sequence above?


Here is the output:

meme-hive:Downloads vlad$ java -jar OpenRadar.jar
log4j:WARN No appenders could be found for logger (de.knewcleus.openradar.OpenRadar).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread "main" java.awt.AWTError: Assistive Technology not found:
at java.desktop/java.awt.Toolkit.newAWTError(Toolkit.java:457)
at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:473)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1604)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:430)
at java.desktop/java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:517)
at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:598)
at java.desktop/javax.swing.UIManager.getSystemLookAndFeelClassName(UIManager.java:660)
at de.knewcleus.openradar.OpenRadar.main(OpenRadar.java:96)
Caused by: java.lang.ClassNotFoundException:
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:375)
at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:470)
... 13 more
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