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exceptionandroid-serviceandroid-sourceandroid-service-binding

AOSP not loading due to one line of code

So I had created a new Service and added to AOSP. The service runs fine when being called from apps. But I want to call few methods of the service from inside the framework code (Source/frameworks/base/core/java/android/content/pm/PackageParser.java).

Is there a special way I need to call create the instance for the service in order for it to be used inside the frameworks.

 ITestService om = ITestService.Stub.asInterface(ServiceManager.getService("Test"));

The above is the way I make an instance to the service inside the PackageParser.java, (the same worked fine when I tried to access it from an app).

The below is the snippet of errors I got from logcat:

***********************************************
F/SystemServer(  500): BOOT FAILURE starting Input Manager Service
F/SystemServer(  500): java.lang.RuntimeException: Unable to get provider com.android.providers.settings.SettingsProvider: java.lang.ClassNotFoundException: com.android.providers.settings.SettingsProvider
F/SystemServer(  500):  at android.app.ActivityThread.installProvider(ActivityThread.java:4201)
F/SystemServer(  500):  at android.app.ActivityThread.getProvider(ActivityThread.java:4010)
F/SystemServer(  500):  at android.app.ActivityThread.acquireProvider(ActivityThread.java:4026)
F/SystemServer(  500):  at android.app.ContextImpl$ApplicationContentResolver.acquireProvider(ContextImpl.java:1612)
F/SystemServer(  500):  at android.content.ContentResolver.acquireProvider(ContentResolver.java:948)
F/SystemServer(  500):  at android.provider.Settings$NameValueCache.getString(Settings.java:701)
F/SystemServer(  500):  at android.provider.Settings$Secure.getString(Settings.java:2207)
F/SystemServer(  500):  at com.android.server.InputMethodManagerService.buildInputMethodListLocked(InputMethodManagerService.java:1966)
F/SystemServer(  500):  at com.android.server.InputMethodManagerService.(InputMethodManagerService.java:556)
F/SystemServer(  500):  at com.android.server.ServerThread.run(SystemServer.java:273)
F/SystemServer(  500): Caused by: java.lang.ClassNotFoundException: com.android.providers.settings.SettingsProvider
F/SystemServer(  500):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
F/SystemServer(  500):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
F/SystemServer(  500):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
F/SystemServer(  500):  at android.app.ActivityThread.installProvider(ActivityThread.java:4186)
F/SystemServer(  500):  ... 9 more
I/SystemServer(  500): Accessibility Manager
W/SystemServer(  500): ***********************************************
F/SystemServer(  500): BOOT FAILURE making display ready

Just before this error I was able to see the success log message saying my service has been started.

I just commented one line which makes instance to my service in PackageParser.java, and the code seemed to work creating the system.img

Any inputs on this problem could help me a lot.

Thank you in advance.

Solution

  • This was because of the dex opt signature mismatch for SettingsProvider.apk For testing purposes I was able to get around this issue by disabling this check achieved by setting the below env variables:

    export WITH_DEXPREOPT=false

    export DISABLE_DEXPREOPT=true

    Courtesy: https://groups.google.com/forum/#!msg/android-building/vJCkg8Yq9Ic/mgev8ODDia4J