Bug#858876: libjna-jni: causes NoClassDefFoundError

[Markus Koschany]

Hi,

Am 18.04.2017 um 11:15 schrieb Emmanuel Bourg:
> Le 18/04/2017 à 00:07, Emmanuel Bourg a écrit :
> 
>> I'll get another look.
> 
> I wrote a simple test case:
> 
>     import com.sun.jna.platform.unix.X11;
>     public class JNATest {
>         public static void main(String[] args) throws Exception {
>             System.setProperty("jna.boot.library.name", "jnidispatch.foo");
>             System.out.println("XAllocSizeHints: " + X11.INSTANCE.XAllocSizeHints());
>         }
>     }
> 
> Compiled and executed with the system JNA jar:
> 
>     java -cp .:/usr/share/java/jna.jar:/usr/share/java/jna-platform.jar JNATest
> 
> And this always works, even if the jna.boot.library.name property
> contains a bogus name.
> 
> Renaming libjnidispatch.system.so to libjnidispatch.so triggers
> an UnsatisfiedLinkError.
> 
> I checked again the JNA code and there is no other occurrence of
> jna.boot.library.* besides the ones removed in 4.2.2-3.
> 
> This issue really looks like an embedded jar. If it isn't in netbeans
> directly, it could be in one of its dependencies.

I must admit I don't know what's going wrong here. I have checked
libnb-platform18-java again but I can't find embedded code copies of
JNA. (I grepped for com.sun.jna). I have also made sure that no external
jar files are downloaded at build time. [1]

I suggest to reassign this bug to libnb-platform18-java for now. I will
update the netbeans-platform-nojnabinaries.patch accordingly which will
hopefully fix this permanently. If you or someone else find an embedded
code copy of JNA in Netbeans or libnb-platform18-java, please let me
know. Obviously this would be very disappointing after all the work that
went into the packaging.

Regards,

Markus

[1]
https://sources.debian.net/src/libnb-platform18-java/8.1%2Bdfsg1-4/debian/patches/netbeans-platform-empty-binaries-list.patch/



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