Android Service get a null pointer exception when installed as system app -


i have launcher app service runs user app normally, after pused /system/app/ system app, can not installed, here strange logcat:

f/fileobserver(  367): unhandled exception in fileobserver com.android.server.pm.packagemanagerservice$appdirobserver@41130430 f/fileobserver(  367): java.lang.nullpointerexception: name == null f/fileobserver(  367):  @ java.io.file.<init>(file.java:150) f/fileobserver(  367):  @ java.io.file.<init>(file.java:124) f/fileobserver(  367):  @ com.android.server.pm.packagemanagerservice.getdatapathforpackage(packagemanagerservice.java:3579) f/fileobserver(  367):  @ com.android.server.pm.packagemanagerservice.scanpackageli(packagemanagerservice.java:3940) f/fileobserver(  367):  @ com.android.server.pm.packagemanagerservice.scanpackageli(packagemanagerservice.java:3382) f/fileobserver(  367):  @ com.android.server.pm.packagemanagerservice.access$1700(packagemanagerservice.java:172) f/fileobserver(  367):  @ com.android.server.pm.packagemanagerservice$appdirobserver.onevent(packagemanagerservice.java:5541) f/fileobserver(  367):  @ android.os.fileobserver$observerthread.onevent(fileobserver.java:125) f/fileobserver(  367):  @ android.os.fileobserver$observerthread.observe(native method) f/fileobserver(  367):  @ android.os.fileobserver$observerthread.run(fileobserver.java:88) d/dalvikvm(  367): gc_for_alloc freed 1488k, 25% free 11974k/15816k, paused 56ms, total 57ms

a string null pointer! happened?

here related android source code packagemanagerservice (android4.2):

private file getdatapathforpackage(string packagename, int userid) {     /*      * until support multiple users, return directory      * have. packagemanagertests need      * revised when changed back..      */     if (userid == 0) {         return new file(mappdatadir, packagename);     } else {         return new file(muserappdatadir.getabsolutepath() + file.separator + userid             + file.separator + packagename);     } }

but still don't know reason.

udpate:

it reason of <original-package> tag in manifest, remove , problem gone.

mostly package name coming null. if see documentation of file notice exact exception thrown when name part null.

public file (file dir, string name) constructs new file using specified directory , name.

parameters dir directory file stored. name file's name.

throws nullpointerexception if name null.


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