Unable to load library 'X11' with 3.3.0, fine with 3.2.7

[tulskiy]

Here is a simple class that loads an X11 library and maps some function:

public class Test {
    static {
        Native.register("X11");
    }

    public static native Pointer XOpenDisplay(String name);


    public static void main(String[] args) {
        XOpenDisplay(null);
    }
}

it all works fine with jna 3.2.7, but with 3.3.0, I get the following exception:

Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'X11': com.sun.jna.Native.open(Ljava/lang/String;)J
    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:166)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:239)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:202)
    at com.sun.jna.Native.register(Native.java:1032)
    at com.tulskiy.keymaster.Test.<clinit>(Test.java:12)

it seems to be finding the library fine, but always fails in Native.open(). Interface mapping fail as well. I'm running Ubuntu 10.10 32-bit.

[twall]

Are you using a libjnidispatch.so from the ubuntu system? the JNI stubs between 3.2.7 and 3.3.0 are not compatible.

On Jul 15, 2011, at 10:05 AM, tulskiy wrote:

Here is a simple class that loads an X11 library and maps some function:

public class Test {
   static {
       Native.register("X11");
   }

   public static native Pointer XOpenDisplay(String name);


   public static void main(String[] args) {
       XOpenDisplay(null);
   }
}

it all works fine with jna 3.2.7, but with 3.3.0, I get the following exception:

Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'X11': com.sun.jna.Native.open(Ljava/lang/String;)J
  at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:166)
  at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:239)
  at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:202)
  at com.sun.jna.Native.register(Native.java:1032)
  at com.tulskiy.keymaster.Test.<clinit>(Test.java:12)

it seems to be finding the library fine, but always fails in Native.open(). Interface mapping fail as well. I'm running Ubuntu 10.10 32-bit.

Reply to this email directly or view it on GitHub:
#12

[twall]

FYI, notice that the UnsatisfiedLinkError is caused by being unable to find the native method "com.sun.jna.Native.open(Ljava/lang/String;)J".

The VM attempting to bind the Native.open method is indistinguishable from the JNI layer throwing the same exception in response to being unable to open the requested library (except for the exception message itself).

On Jul 15, 2011, at 10:05 AM, tulskiy wrote:

it all works fine with jna 3.2.7, but with 3.3.0, I get the following exception:

```java
Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'X11': com.sun.jna.Native.open(Ljava/lang/String;)J
  at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:166)
  at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:239)
  at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:202)
  at com.sun.jna.Native.register(Native.java:1032)
  at com.tulskiy.keymaster.Test.<clinit>(Test.java:12)

[tulskiy]

Umm, I'm not using ubuntu packages. It is a maven project with java.net m2 repo.

[whatnick]

What do your JVM launch options look like ? I typically have both jna.library.path and java.library.path set.

[tulskiy]

OK, I've set java.library.path to /usr/lib with 3.3.0 and it works now, thank you. But I'm not setting neither jna.library.path nor java.library.path with 3.2.7 library and all works fine on Ubuntu 10.10, 11.04, Arch and Gentoo.

I guess the issue is closed, thank you.