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Re: Getting System.loadLibrary to use an already loaded JNI library

Subject: Re: Getting System.loadLibrary to use an already loaded JNI library
From: Moises Lejter <email@hidden>
Date: Thu, 01 Apr 2004 10:07:37 -0500

At 09:35 AM 4/1/2004, Mike Richmond wrote:

We have our own java launcher, based on the simpleJavaLauncher sample code. Before it creates and invokes the JVM it loads one of our JNI libraries, call it libFoo.jnilib, so as to call one of its methods. It does this using NSCreateObjectFileImageFromFile(), NSLinkModule(), NSLookupSymbolInModule(), etc. Later our Java code calls System.loadLibrary() for libFoo.jnilib, which loads a second copy of the library (verified with 'info sharedlibrary dyld' in gdb). Is there any way to get System.loadLibrary() to recognise that libFoo.jnilib is already loaded and use that copy rather than loading it again?

I don't think so - but if you are creating your own JVM from within native code,
you could always register the functions in that JNI lib with the JVM yourself:

jniEnv->RegisterNatives( theClass, methods, numMethods )

before you call into Java...

Moises
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	>Getting System.loadLibrary to use an already loaded JNI library (From: Mike Richmond <email@hidden>)

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