java.lang.OutOfMemoryError on android

[Giudici-a]

Hi,

I try to use your library to create my own wallet app just to learn how it work on android, but i get a strange exception when i tried to loadCredentials like this:
private Boolean getWallet(String password, File dir) throws Exception { this.myWallet = WalletUtils.loadCredentials(password, dir); this.address = this.myWallet.getAddress(); Log.d(TAG, this.address); //a tester return this.address == null; }

I get this exception : java.lang.OutOfMemoryError, i'am sure my wallet file is valid because i select it from a FileDialog that i made and it always worked before. (and i did some test today to be sure it was not that, and the exception should be different if it was the problem).

i saw other issues about this subject but the solution doesn't work for me.

So if someone can help me it could be wonderful.

Thanks for your reading.

[iikirilov]

@Giudici-a could you tag the possibly related issue and post a full stacktrace

[Giudici-a]

Hi, of course:

3-26 17:35:10.796 14444-14444/com.example.aureliengiudici.ethrade E/AndroidRuntime: FATAL EXCEPTION: main java.lang.OutOfMemoryError at org.spongycastle.util.Arrays.clone(Arrays.java:602) at org.spongycastle.crypto.generators.SCrypt.SMix(SCrypt.java:126) at org.spongycastle.crypto.generators.SCrypt.MFcrypt(SCrypt.java:87) at org.spongycastle.crypto.generators.SCrypt.generate(SCrypt.java:66) at org.web3j.crypto.Wallet.generateDerivedScryptKey(Wallet.java:136) at org.web3j.crypto.Wallet.decrypt(Wallet.java:214) at org.web3j.crypto.WalletUtils.loadCredentials(WalletUtils.java:82) at com.example.aureliengiudici.ethrade.Contracts.WalletConfiguration.getWallet(WalletConfiguration.java:108) at com.example.aureliengiudici.ethrade.Contracts.WalletConfiguration.start(WalletConfiguration.java:56) at com.example.aureliengiudici.ethrade.MainActivity.openWalletFile(MainActivity.java:135) at com.example.aureliengiudici.ethrade.MainActivity.access$100(MainActivity.java:32) at com.example.aureliengiudici.ethrade.MainActivity$1.fileSelected(MainActivity.java:70) at com.example.aureliengiudici.ethrade.Utils.FileDialog$3.fireEvent(FileDialog.java:116) at com.example.aureliengiudici.ethrade.Utils.FileDialog$3.fireEvent(FileDialog.java:114) at com.example.aureliengiudici.ethrade.Utils.ListenerList.fireEvent(FileDialog.java:177) at com.example.aureliengiudici.ethrade.Utils.FileDialog.fireFileSelectedEvent(FileDialog.java:114) at com.example.aureliengiudici.ethrade.Utils.FileDialog.access$600(FileDialog.java:19) at com.example.aureliengiudici.ethrade.Utils.FileDialog$2.onClick(FileDialog.java:77) at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:963) at android.widget.AdapterView.performItemClick(AdapterView.java:298) at android.widget.AbsListView.performItemClick(AbsListView.java:1128) at android.widget.AbsListView$PerformClick.run(AbsListView.java:2812) at android.widget.AbsListView$1.run(AbsListView.java:3571) at android.os.Handler.handleCallback(Handler.java:725) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:153) at android.app.ActivityThread.main(ActivityThread.java:5297) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) at dalvik.system.NativeStart.main(Native Method)

the function where i do the loadCredentials is the getWallet.

The relative issues : #308 , #299
@iikirilov do you have some ideas ?

[kagile]

Still happening with
api ('org.web3j:core:4.1.0-android')

Device: Motorola Nexus 6
OS: Andorid Naugat 7.1

[kagile]

Stacktrace:

E: Throwing OutOfMemoryError "Failed to allocate a 28 byte allocation with 0 free bytes and 3GB until OOM" (recursive case)
E: "RxCachedThreadScheduler-1" daemon prio=5 tid=14 Runnable
E:   | group="main" sCount=0 dsCount=0 obj=0x22c074c0 self=0xb4836c00
E:   | sysTid=28807 nice=0 cgrp=apps sched=0/0 handle=0xb491c680
E:   | state=R schedstat=( 0 0 0 ) utm=259 stm=17 core=1 HZ=100
E:   | stack=0xa4099000-0xa409b000 stackSize=1036KB
E:   | held mutexes= "mutator lock"(shared held)
E:     at org.bouncycastle.util.Arrays.clone(unavailable:-1)
E:     at org.bouncycastle.crypto.generators.SCrypt.SMix(unavailable:-1)
E:     at org.bouncycastle.crypto.generators.SCrypt.MFcrypt(unavailable:-1)
E:     at org.bouncycastle.crypto.generators.SCrypt.generate(unavailable:-1)
E:     at org.web3j.crypto.Wallet.generateDerivedScryptKey(Wallet.java:131)
E:     at org.web3j.crypto.Wallet.decrypt(Wallet.java:197)
E:     at org.web3j.crypto.WalletUtils.loadCredentials(WalletUtils.java:119)
E:     at org.web3j.crypto.WalletUtils.loadCredentials(WalletUtils.java:113)
E:     at com.example.krupal.smartcontractapp.MainActivity.lambda$onCreate$1(MainActivity.java:61)
E:     at com.example.krupal.smartcontractapp.-$$Lambda$MainActivity$fRkwt4x_v4-ifh824OdJn3WdAHQ.apply(lambda:-1)
E:     at io.reactivex.internal.operators.observable.ObservableMap$MapObserver.onNext(ObservableMap.java:57)
E:     at io.reactivex.internal.observers.DeferredScalarDisposable.complete(DeferredScalarDisposable.java:82)
E:     at io.reactivex.internal.operators.observable.ObservableFromCallable.subscribeActual(ObservableFromCallable.java:53)
E:     at io.reactivex.Observable.subscribe(Observable.java:12090)
E:     at io.reactivex.internal.operators.observable.ObservableMap.subscribeActual(ObservableMap.java:32)
E:     at io.reactivex.Observable.subscribe(Observable.java:12090)
E:     at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeTask.run(ObservableSubscribeOn.java:96)
E:     at io.reactivex.Scheduler$DisposeTask.run(Scheduler.java:578)
E:     at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:66)
E:     at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:57)
E:     at java.util.concurrent.FutureTask.run(FutureTask.java:237)
E:     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
E:     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
E:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
E:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
E:     at java.lang.Thread.run(Thread.java:818)

[kagile]

Can anyone please provide a temporary solution to this?

[alexroan]

Can anyone please provide a temporary solution to this?

Try this: #299 (comment)