Change tmp directory for JNA?

[Eugene Sun]

Hi all,

I'm currently working under a Linux environment with /tmp mounted with an "no-exec" option. I think this has prevented JNA's initialization from working properly. Specifically, I'm seeing this exception when executing my code:

Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/jna--1427646616/jna3059406617541829784.tmp: /tmp/jna--1427646616/jna3059406617541829784.tmp: failed to map segment from shared object: Operation not permitted

I was able to get around the problem at this point by specifying "-Djava.io.tmpdir=<some other directory>" when I start JVM, but is there any way I can specify a different tmp directory just for JNA, that doesn't affect the entire JVM? Maybe through another system property, or some other magic? I wasn't able to find any related properties in the documentation.

Thanks very much in advance!

Best,

Eugene

[Timothy Wall]

jna.tmpdir will be used if defined.

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[Wellton Barros]

You're making with applet or application desktop? 

Makes a test in debug: new File('address file') then see if the file found.

If found, perhaps DLL version 32, 64 bits.

You can try using an SDK/JRE 32 or 64 bits to test.

Sorry for my english!

Wellton S. Barros

www.cafecanudo.com.br

+55 62 9602-0305

[Eugene Sun]

Yep it works. Thanks Tim!

[Eugene Sun]

Thanks for your help Welton, the problem is with the system property. Setting jna.tmpdir resolved the issue.