JNLP and JNI native libraries

Topic: How to use JNLP to load jar files which include native libraries ?

1. Build native libraries

* HelloWorld.dll for Windows

* libHelloWorld.so for Linux (library name must be libXXX.so in Linux !!)

(How to build those native libraries ? see jni book)

2. Pack native libraries into jar

jar -cvf Linux32_lib.jar libHelloWorld.so

jar -cvf Win32_lib.jar HelloWorld.dll

3. Add tags in jnlp

(please replace ( with <)

(resources os="Windows">

(j2se version="1.5+"/>

(nativelib href="native/Win32_lib.jar"/>

(/resources>

(resources os="Linux">

(j2se version="1.5+"/>

(nativelib href="native/Linux32_lib.jar"/>

(/resources>

4. In code, explicitly load the library

System.loadLibrary("HelloWorld");

(windows->HelloWorld.dll ; linux -> libHelloWorld.so)