We don't need to install any JNA binaries, since they're already installed.

Index: platform/libs.jna/nbproject/project.properties
===================================================================
--- platform.orig/libs.jna/nbproject/project.properties	2011-05-22 19:51:45.514338125 +0100
+++ platform/libs.jna/nbproject/project.properties	2011-05-22 21:56:53.854338968 +0100
@@ -41,9 +41,9 @@
 # made subject to such option by the copyright holder.
 
 release.external/jna-3.2.7.jar=modules/ext/jna-3.2.7.jar
-release.external/jna-3.2.7.jar!/com/sun/jna/darwin/libjnidispatch.jnilib=modules/lib/libjnidispatch.jnilib
-release.external/jna-3.2.7.jar!/com/sun/jna/linux-amd64/libjnidispatch.so=modules/lib/amd64/Linux/libjnidispatch.so
-release.external/jna-3.2.7.jar!/com/sun/jna/linux-i386/libjnidispatch.so=modules/lib/i386/Linux/libjnidispatch.so
-release.external/jna-3.2.7.jar!/com/sun/jna/win32-amd64/jnidispatch.dll=modules/lib/amd64/jnidispatch.dll
-release.external/jna-3.2.7.jar!/com/sun/jna/win32-x86/jnidispatch.dll=modules/lib/x86/jnidispatch.dll
+#release.external/jna-3.2.7.jar!/com/sun/jna/darwin/libjnidispatch.jnilib=modules/lib/libjnidispatch.jnilib
+#release.external/jna-3.2.7.jar!/com/sun/jna/linux-amd64/libjnidispatch.so=modules/lib/amd64/Linux/libjnidispatch.so
+#release.external/jna-3.2.7.jar!/com/sun/jna/linux-i386/libjnidispatch.so=modules/lib/i386/Linux/libjnidispatch.so
+#release.external/jna-3.2.7.jar!/com/sun/jna/win32-amd64/jnidispatch.dll=modules/lib/amd64/jnidispatch.dll
+#release.external/jna-3.2.7.jar!/com/sun/jna/win32-x86/jnidispatch.dll=modules/lib/x86/jnidispatch.dll
 jnlp.indirect.files=modules/lib/**/*jnidispatch*
