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Thread: .jar file won't execute

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    Question .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.


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    Default Re: .jar file won't execute

    You could try showing us lines 12 and 24 from your SoundEffect class and showing a content listing of your jar file to demonstrate that the sound resource you're attempting to open is there. 'jar tf yourJarFile.jar' at the command line would do the trick.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    Try printing out the values of soundFileName and the URL so you can verify that they have correct values.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    What about printing out the URLs also. Do it both ways. In the IDE and standalone in the jar.

    If it works in Eclipse, then its probably a path problem.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    Your URLs are all to disk files not to the contents of the jar file.

    Where was the program executed that produced what you posted in post#7?
    In the IDE or from the jar in a test folder.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:17 PM.

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    Default Re: .jar file won't execute

    Does It work in the IDE? Now do it from the jar in a test folder.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    Run it from the command prompt and copy the contents of the screen here.
    java -jar <YOURJARFILENAME>.jar

    To copy the contents of the command prompt window:
    Click on Icon in upper left corner
    Select Edit
    Select 'Select All' - The selection will show
    Click in upper left again
    Select Edit and click 'Copy'

    Paste here.

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    Just out of interest: I see backslashes in resource paths (because developer uses Windows?), does that work in Java?

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    Default Re: .jar file won't execute

    What is the null that was printed out?

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:15 PM.

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    Default Re: .jar file won't execute

    Try using /

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:16 PM.

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    Default Re: .jar file won't execute

    What println printed it? Add an id string to ALL the println so you know which one is printing
    ...println("This is me printing theVar=" + theVariableHere);

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:16 PM.

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    Default Re: .jar file won't execute

    jar:file:/C:/Users/*****/Desktop/Test.jar!/sounds/break.wav
    soundFileName println(): sounds/break.wav
    That looks like it is looking in the jar file.

    java.lang.IllegalArgumentException: input == null!
    at javax.imageio.ImageIO.read(ImageIO.java:1362)
    at Fugel.load(Fugel.java:19)
    What is ImageIO.read trying to do? What are its arguments? on line 19

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:16 PM.

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    Default Re: .jar file won't execute

    Change the code to use a URL object and print that out the same as for the sound files.The check that what is printed out is in the jar file with the correct path

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    Default Re: .jar file won't execute

    ..............
    Last edited by pajfilms; May 4th, 2012 at 01:16 PM.

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    Default Re: .jar file won't execute

    Why does the error keep moving around? What happened to The error in post#21

    Please identify which classes are yours in the error message.
    Exception in thread "main" java.lang.ExceptionInInitializerError
    at Panel.load(Panel.java:37)
    at Panel.<init>(Panel.java:31)
    at Frame.<init>(Frame.java:23)
    at Frame.main(Frame.java:33)
    Caused by: java.lang.NullPointerException
    at com.sun.media.sound.WaveFileReader.getAudioInputSt ream (WaveFileReader.java:180)
    at javax.sound.sampled.AudioSystem.getAudioInputStrea m (AudioSystem.java:1128)
    at SoundEffect.<init>(SoundEffect.java:26)
    at SoundEffect.<clinit>(SoundEffect.java:12)
    Look at the source lines referred to and see what variable is null. Then find out why it is null.

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