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javaubuntujarunsatisfiedlinkerrorbeagleboneblack

unsatisfied link error runnable jar referencing jssc library

We are creating a runnable java jar to run on a beagle bone black(running ubuntu).

We have created a runnable jar which runs fine on our mac and pc(windows) but will not run on the ubuntu system. We keep getting the following error when running:

    Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
    Caused by: java.lang.UnsatisfiedLinkError: /home/ubuntu/.jssc/linux/libjSSC-2.6_armhf.so: /home/ubuntu/.jssc/linux/libjSSC-2.6_armhf.so: cannot open shared object file: No such file or directory
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
        at java.lang.Runtime.load0(Runtime.java:795)
        at java.lang.System.load(System.java:1062)
        at jssc.SerialNativeInterface.<clinit>(SerialNativeInterface.java:172)
        at jssc.SerialPort.<init>(SerialPort.java:118)
        at InputBoard.<init>(InputBoard.java:33)
        at InputBoard.main(InputBoard.java:22)
        ... 5 more

Any information would be greatly appreciated. As I said this runs fine through terminal on a mac which is unix based so it seems it should work on Ubuntu. We have no idea why it is referencing the /home/ubuntu directory. Please let us know if you need any code information on the project but I would not think it would be related.

Solution

  • I fixed this problem when I installed the latest JDK 8 for Hard float for Arm. Previously I tried several things, I tried using versions 2.6, 2.7 and 2.8, specified LD_LIBRARY_PATH env. variable, making sure that library was in ~/.jssc/linux, etc, etc all this to no avail, only after I upgraded java, it worked flawlessly.