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skylot / jadx

Dex to Java decompiler
Apache License 2.0
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Integrating jadx library in Android > API 26 #2207

Open localacct opened 2 months ago

localacct commented 2 months ago

Issue details

Hi

I read from the wiki that Jadx should be supported on Android > API 26 and I want to integrate it into my Android Studio project.

I encounter this error when I tried to run the apk. The code snippet is converted from the wiki page as well

        val jadxArgs = JadxArgs()
        jadxArgs.setInputFile(File("/storage/emulated/0/Android/data/<package name>/files/classes.dex"))
        jadxArgs.outDir = File("/storage/emulated/0/Android/data/<package name>/files/output")
        try {
            JadxDecompiler(jadxArgs).use { jadx ->
                jadx.load()
                jadx.save()

                for (cls in jadx.getClasses()) {
                    for (mth in cls.getMethods()) {
                        Log.v("conversion", "method " + mth.name)

                    }
                }
            }
        } catch (e: Exception) {
            e.printStackTrace()
        }

Relevant log output or stacktrace

06-26 15:15:39.139  6528  6528 D AndroidRuntime: Shutting down VM
06-26 15:15:39.139  6528  6528 E AndroidRuntime: FATAL EXCEPTION: main
06-26 15:15:39.139  6528  6528 E AndroidRuntime: Process: <package name redacted>, PID: 6528
06-26 15:15:39.139  6528  6528 E AndroidRuntime: java.lang.ExceptionInInitializerError
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.core.utils.files.FileUtils.expandDirs(FileUtils.java:52)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.api.JadxDecompiler.loadInputFiles(JadxDecompiler.java:148)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.api.JadxDecompiler.load(JadxDecompiler.java:119)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at <package.name.redacted>.MainActivity.onCreate(MainActivity.kt:140)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.Activity.performCreate(Activity.java:8051)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.Activity.performCreate(Activity.java:8031)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1329)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3608)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3792)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2210)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:106)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.os.Looper.loopOnce(Looper.java:201)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:288)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:7839)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
06-26 15:15:39.139  6528  6528 E AndroidRuntime: Caused by: jadx.core.utils.exceptions.JadxRuntimeException: Failed to create temp root directory
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.core.utils.files.FileUtils.createTempRootDir(FileUtils.java:167)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.core.utils.files.FileUtils.<clinit>(FileUtils.java:153)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    ... 20 more
06-26 15:15:39.139  6528  6528 E AndroidRuntime: Caused by: java.nio.file.NoSuchFileException: /data/user/0/<package name redacted>/cache/jadx-instance-6586490984325279364
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:391)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at java.nio.file.Files.createDirectory(Files.java:674)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at java.nio.file.TempFileHelper.create(TempFileHelper.java:136)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at java.nio.file.TempFileHelper.createTempDirectory(TempFileHelper.java:173)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at java.nio.file.Files.createTempDirectory(Files.java:991)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    at jadx.core.utils.files.FileUtils.createTempRootDir(FileUtils.java:162)
06-26 15:15:39.139  6528  6528 E AndroidRuntime:    ... 21 more

Provide sample and class/method full name

I tested this on an Android Emulator running Android OS version 12. I have granted these permissions in my AndroidManifest.xml file

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Jadx version

jadx-core:1.5.0

NebelNidas commented 2 months ago

Interesting, reminds me of https://github.com/skylot/jadx/issues/2131. Note that the root cause might be entirely unrelated, but in both cases Files#createTempDirectory seems to be problematic