[Jar][Android P] How to build a jar library into /vendor/framework

Question

In Android souce code (AOSP), I am trying to compile a jar library into /vendor/framework/ but not /system/framework.

So I did the change in Android.bp for this library:

java_library {
    name: "com.test.provider",
    srcs: ["./java/**/*.java"],
    vendor: true,
    dex_preopt: {
        app_image: true,
    },
}

The com.test.provider.jar was built to /vendor/framework/ now.

Then I use this library in SystemUI, did the change in frame/base/packages/SystemUI/Android.mk:

LOCAL_JAVA_LIBRARIES += com.test.provider

And also refer the class that defined in com.test.provider.jar, SystemUI was built successful.

But when this APP was running, got the below error message:

12-27 11:35:41.807  5449  5449 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
12-27 11:35:41.807  5449  5449 E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.test.testprovidermanager.TestProviderManager" on path: DexPathList[[zip file "/system/priv-app/SystemUI/SystemUI.apk"],nativeLibraryDirectories=[/system/priv-app/SystemUI/lib/arm64, /system/lib64, /vendor/lib64, /system/lib64, /vendor/lib64]]

Looks like OS seeks this library neither /system/framework nor /vendor/framework. But when I built this library to /system/framework/(Remove "vendor: true" from Android.bp), SystemUI works fine, it is so strange!

So my question is: How to build a jar library to /vendor/framwork/ in Android P?

Thanks for your help!

Answer 1

Sloved this issue. I forgot change permission in /system/etc/permission/testprovider_permission.xml:

<?xml version="1.0" encoding="utf-8"?>
<permissions>
 <library name="com.test.provider"
      file="/system/framework/com.test.provider.jar"/>
</permissions>

Change /system/framework/com.test.provider.jar to /vendor/framework/com.test.provider.jar