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problems when running a .class file from the command line on linux
Posted Feb 14, 2014, 7:01 a.m. EST Version 4.4 3 Replies
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I have a java application which can be controlled using command line arguments (if it is started from the Desktop, or with no command line args, it pops up a dialog where I can give these command line args). It runs fine on Windows either from the Desktop or from the command line. It runs fine on linux from the COMSOL Desktop, but when I run it from the command line like this:
java -cp "/usr/local/comsol44/plugins/*:." MyApp -cmd -line -args
then I get the error message below. If I run it using
comsol batch -inputfile MyApp
then it runs fine (and I can provide the lacking command line args in the dialog that it pops up automatically). But I would like to be able to provide command line arguments directly on the command line, which I can not do using 'comsol batch'.
What should I check? Set LD_LIBRARY_PATH to something?
Thank you
Exception:
java.lang.UnsatisfiedLinkError: com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V
(rethrown as com.comsol.util.exceptions.FlException)
Messages:
com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V
Stack trace:
at com.comsol.nativejni.geom.Geom3.createGeom3(Native Method)
at com.comsol.nativejni.geom.Geom3.<init>(Unknown Source)
at com.comsol.nativemph.geom.Geom3.<init>(Unknown Source)
at com.comsol.model.method.GeomSequenceMethod.setEmptyGeom(Unknown Source)
at com.comsol.model.internal.impl.GeomSequenceImpl.doSetEmptyGeom(Unknown Source)
at com.comsol.model.internal.impl.GeomSequenceImpl.setEmptyGeom(Unknown Source)
at com.comsol.model.method.GeomSequenceMethod.doInitialize(Unknown Source)
at com.comsol.model.internal.impl.GeomSequenceImpl.doInitialize(Unknown Source)
at com.comsol.model.internal.impl.ModelEntityImpl.initialize(Unknown Source)
at com.comsol.model.internal.impl.GeomListImpl.doCreate(Unknown Source)
at com.comsol.model.internal.impl.GeomListImpl.a(Unknown Source)
at com.comsol.model.internal.impl.GeomListImpl$1.a(Unknown Source)
at com.comsol.model.internal.impl.GeomListImpl$1.execute(Unknown Source)
at com.comsol.model.clientserver.ClientManager$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Hello
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Thanks
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# HACK: Dump args as json.
with open("{}/{}".format(model_dir, "args.json"), 'w') as outfile:
json.dump(args, outfile)
# Invoke comsol batch processing.
subprocess.call(args)
where model_dir is the current working directory. I can then load them using the following hack:
public static void main(String[] args) {
# HACK: Read args from json.
if(args == null) args = JsonUtils.parse_arr((JSONArray) JsonUtils.parse_json("args.json"));
...
}
where the JsonUtils method are just some static helpers that make the JSON parsing less painfull.