Date: Sun, 08 Feb 2004 12:55:33 -0500 From: "Daniel R. Curran" <drc7257@cs.rit.edu> To: freebsd-java@freebsd.org Subject: JNI Share Library Issue Message-ID: <40267815.5000508@cs.rit.edu>
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I am trying to learn how to use JNI and I started with the Java JNI tutorial <http://java.sun.com/docs/books/tutorial/native1.1/>; and was quickly lead around the web by google trying to figure out how to construct a proper shared library. I have searched and have not found anything suggesting information different than what I am doing. I am trying to simply get the HelloWorld demo to work. Some basic info: java -version java version "1.3.1_10" Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_10-b03) Classic VM (build 1.3.1_10-b03, green threads, nojit) file libhello.so libhello.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (FreeBSD), not stripped The commands I use to create and run the java program are: javac HelloWorld.java javah -jni HelloWorld cc -fPIC -Wall -c HelloWorldImp.c -I/usr/local/linux-sun-jdk1.3.1/include -I/usr/local/linux-sun-jdk1.3.1/include/linux ld -Bshareable -fPIC -o libhello.so HelloWorldImp.o export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD java HelloWorld Everything is working fine until I get to the java HelloWorld call, which results in the following runtime exception: Exception in thread "main" java.lang.UnsatisfiedLinkError: /usr/home/dan/programming/jni/libhello.so: /usr/home/dan/programming/jni/libhello.so: ELF file OS ABI invalid at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1414) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1338) at java.lang.Runtime.loadLibrary0(Runtime.java:744) at java.lang.System.loadLibrary(System.java:815) at HelloWorld.<clinit>(HelloWorld.java:5) I thought that I was doing everything correctly, but I must not be. Does anyone have any idea as to how I can get this to work? Thanks, Dan Curran
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