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Editorial Team
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Asked: 2026-05-30T04:47:50+00:00

I’m trying to run a 32bit Hotspot JVM on a 64bit Debian Mint machine.

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I’m trying to run a 32bit Hotspot JVM on a 64bit Debian Mint machine. At first sight it all works until you’ll try to run something using Swing:

java.lang.UnsatisfiedLinkError: /opt/javadev/jdk1.7.0_03_32b/jre/lib/i386/xawt/libmawt.so:   
libXext.so.6: cannot open shared object file: No such file or directory

Adding that to the library path: export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu.

But then it gives this error: 

java.lang.UnsatisfiedLinkError: /opt/javadev/jdk1.7.0_03_32b/jre/lib/i386/xawt/libmawt.so: 
libXext.so.6: wrong ELF class: ELFCLASS64

Any idea what else has to be done here ?

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1 Answer

  1. Editorial Team

    To be able to use the 32-bit JVM, you’ll need to have the 32-bit compatibility libraries installed. The second error message means that the 32-bit JVM process is trying to load a 64-bit library; that doesn’t work.

    On Ubuntu you’d have to install the package ia32-libs, which contains the 32-bit compatibility libraries for 64-bit Ubuntu.

    UPDATE: Ubuntu 13.10 introduced multi-arch which replaced ia32-libs with libstdc++6:i386 libgcc1:i386 zlib1g:i386 libncurses5:i386. Source: https://stackoverflow.com/a/10473415/14731

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