PackageManager check of isEphemeralDisabled causes a deadlock on Android 7.1 - 


private boolean isephemeralallowed(         intent intent, list<resolveinfo> resolvedactivities, int userid,         boolean skippackagecheck) {      // short circuit , return if possible.     if (isephemeraldisabled()) {         return false;     }     final int callinguser = userhandle.getcallinguserid();     if (callinguser != userhandle.user_system) {         return false;     }     if (mephemeralresolverconnection == null) {         return false;     }     if (intent.getcomponent() != null) {         return false;     }     if ((intent.getflags() & intent.flag_ignore_ephemeral) != 0) {         return false;     }     if (!skippackagecheck && intent.getpackage() != null) {         return false;     }     final boolean isweburi = hasweburi(intent);    private boolean isephemeraldisabled() {     // ephemeral apps have been disabled across board     if (disable_ephemeral_apps) {         return true;     }     // system isn't yet; can't read settings, so, assume no ephemeral apps     if (!msystemready) {         return true;     }      // can't content resolver until system ready; these checks must happen last     final contentresolver resolver = mcontext.getcontentresolver();     if (global.getint(resolver, global.enable_ephemeral_feature, 1) == 0) {         return true;     }     return secure.getint(resolver, secure.web_action_enabled, 1) == 0;  }

for android 7.0, disable_ephemeral_apps default true 

private static final boolean disable_ephemeral_apps = true;

but in android 7.1, google enabled instant apps support: https://android.googlesource.com/platform/frameworks/base.git/+/7ef97b6624054fff0d712d85336a45eee70bcc3f%5e%21/#f0

for isephemeralallowed method, if call resolveintent, of intents call isephemeralallowed method, cause packagemanager service user binder call settingprovider, , probability cause deadlock.


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