Eclipse plugin - UnsatisfiedLinkError when trying to initialize JOGL

When I try to initialize JOGL using GLProfile.initSingleton(false); inside the start method of my plugin Activator I get the following Exception:

java.lang.UnsatisfiedLinkError: jogamp.nativewindow.windows.GDI.initIDs0()Z

I'm including the required native libraries using the OSGi Manifest entry Bundle-NativeCode.

I packaged the libraries (JOGL, Gluegen and Nativewindow) into separate plugins and have set the following Manifest for the Nativewindow plugin (where obviously the error occurs):

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Nativewindow
Bundle-SymbolicName: lib.nativewindow;singleton:=true
Bundle-Version: 2.0.0.rc2
Bundle-ClassPath: nativewindow.all.jar
Export-Package: com.jogamp.nativewindow,
 javax.media.nativewindow,
 javax.media.nativewindow.awt,
 javax.media.nativewindow.egl,
 javax.media.nativewindow.macosx,
 javax.media.nativewindow.util,
 javax.media.nativewindow.windows,
 javax.media.nativewindow.x11,
 jogamp.nativewindow,
 jogamp.nativewindow.awt,
 jogamp.nativewindow.jawt,
 jogamp.nativewindow.jawt.macosx,
 jogamp.nativewindow.jawt.windows,
 jogamp.nativewindow.jawt.x11,
 jogamp.nativewindow.swt,
 jogamp.nativewindow.windows,
 jogamp.nativewin开发者_JAVA百科dow.x11
Require-Bundle: lib.gluegen;bundle-version="2.0.0"
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Bundle-ActivationPolicy: lazy
Bundle-NativeCode: native/windows/i586/nativewindow_awt.dll; native/windows/i586/   nativewindow_win32.dll; osname=win32; processor=x86,

 native/windows/amd64/nativewindow_awt.dll; native/windows/amd64/nativewindow_win32.dll; osname=win32; processor=x86-64,

 native/macosx/libnativewindow_awt.jnilib; osname=maxosx; processor=x86,

 native/macosx/libnativewindow_awt.jnilib; osname=maxosx; processor=ppc,

 native/linux/i586/libnativewindow_awt.so; native/linux/i586/libnativewindow_x11.so; osname=linux; processor=x86,

 native/linux/amd64/libnativewindow_awt.so; native/linux/amd64/libnativewindow_x11.so; osname=linux; processor=x86-64

I double-checked the native library paths and they do point to the correct files.

Now, what did I do wrong?