[yocto] Recipe for JNI Wrapper (libusb4java)

[Nathan Roberts]

I'm trying to create a recipe for libusb4Java (
https://github.com/usb4java/libusb4java/).

I have the following recipe

SUMMARY = "Native library support for usb4java"
HOMEPAGE = "http://usb4java.org"
BUGTRACKER = "https://github.com/usb4java/libusb4java/issues"
SECTION = "libs"
DEPENDS = "libusb"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://LICENSE.md;md5=4c49d7fe1fc7a6ebad3b4e6b849a0052"
BBCLASSEXTEND = "native nativesdk"
SRCREV = "396d642a57678a0d9663b062c980fe100cc0ea1e"
SRC_URI = "git://github.com/usb4java/libusb4java.git"

S = "${WORKDIR}/git"
#need to change following ref http://usb4java.org/nativelibs.html
D = "/tmp"
export JAVA_HOME="${STAGING_DIR_NATIVE}/usr/bin/java"
inherit cmake java-library


local.conf has the following added:
BB_ENV_EXTRAWHITE += "JAVA_HOME"


I get the following error:
checking if
/home/ubuntu/yocto/poky/build/tmp/work/x86_64-linux/classpath-native/0.99-r6.0/recipe-sysroot-native/usr/bin/ecj-initial
works... configure: error: The Java compiler
/home/ubuntu/yocto/poky/build/tmp/work/x86_64-linux/classpath-native/0.99-r6.0/recipe-sysroot-native/usr/bin/ecj-initial
failed (see config.log, check the CLASSPATH?)

So I appear to have a classpath problem, but I'm unsure how to resolve this?

Any advice appreciated.
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