objectbox / objectbox/objectbox-java

LinkageError when two programs use ObjectBox and share the same .dll.

Aperta
#1,096 2 commenti 0 reazioni 0 assegnatari Vedi su GitHub

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enhancement
Lingua principale
Java
Stelle
4.6k
Fork
311
Metriche di merge delle PR
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Descrizione

Describe the bug
A Java program will not work if another Java program uses ObjectBox.

Basic info:

  • ObjectBox version: 3.2.1
  • Reproducibility: always
  • Device: Desktop Java
  • OS: Windows 10, Windows 11 & Linux

To Reproduce
See the Is there anything special about your app?.

Probable way to reproduce the behaviour without using Spigot plugins:

  1. Create two projects that use ObjectBox and place them in the same folder.
  2. Execute each application
  3. See error

Way to reproduce the behaviour USING Spigot plugins:

  1. Create two Spigot plugins that use ObjectBox.
  2. Place the plugins under the \plugins folder.
  3. Start the server & see the error for one plugin.

Expected behavior
ObjectBox should be able to use different .dll files in order for this error not to happen. This could be worked around by providing a method to specify the location of the .dll file, https://github.com/objectbox/objectbox-java/issues/973

Logs, stack traces

[15:34:38 WARN]: Caused by: java.lang.LinkageError: [ObjectBox] Loading native library failed, please report this to us: vendor=Oracle Corporation,os=linux,os.arch=amd64,model=64,linux=true,machine=x86_64
[21:23:30 WARN]: java.io.FileNotFoundException: objectbox-jni-windows-x64.dll (El proceso no tiene acceso al archivo porque está siendo utilizado por otro proceso)
[21:23:30 WARN]:        at java.base/java.io.FileOutputStream.open0(Native Method)
[21:23:30 WARN]:        at java.base/java.io.FileOutputStream.open(FileOutputStream.java:293)
[21:23:30 WARN]:        at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:235)
[21:23:30 WARN]:        at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:184)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//io.objectbox.internal.NativeLibraryLoader.checkUnpackLib(NativeLibraryLoader.java:227)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//io.objectbox.internal.NativeLibraryLoader.<clinit>(NativeLibraryLoader.java:75)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//io.objectbox.BoxStore.<init>(BoxStore.java:262)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//io.objectbox.BoxStoreBuilder.build(BoxStoreBuilder.java:516)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//dev.ckblck.referrals.logic.reward.storage.pending.PendingRewardDatabase.loadDatabase(PendingRewardDatabase.java:79)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//dev.ckblck.referrals.logic.reward.storage.pending.PendingRewardDatabase.<init>(PendingRewardDatabase.java:30)
[21:23:30 WARN]:        at Plugin-1.0-SNAPSHOT.jar//dev.ckblck.referrals.Plugin.lambda$onEnable$0(Plugin.java:82)
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[21:23:30 WARN]: java.util.concurrent.CompletionException: java.lang.LinkageError: [ObjectBox] Loading native library failed, please report this to us: vendor=Amazon.com Inc.,os=windows 10,os.arch=amd64,model=64,linux=false,machine=null
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
[21:23:30 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[21:23:30 WARN]:        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[21:23:30 WARN]: Caused by: java.lang.LinkageError: [ObjectBox] Loading native library failed, please report this to us: vendor=Amazon.com Inc.,os=windows 10,os.arch=amd64,model=64,linux=false,machine=null

Additional context

  • Is there anything special about your app?
    I'm using ObjectBox for Spigot Java plugins. In this context, the objectbox-jni-windows-x64 is being shared for all the plugins that use ObjectBox, and as far as I'm aware, there is no viable way to modify the location of the objectbox-jni-windows-x64 file for each instance. Possibly related with https://github.com/objectbox/objectbox-java/issues/973
    The Spigot standalone loads each plugin and when two plugins are using ObjectBox, the error occurrs.

Guida per i contributori

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Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Direzione di ricerca

Inizia da io.objectbox.internal.NativeLibraryLoader.checkUnpackLib alla riga 227 e dalla issue correlata #973, quindi riproduci il problema con due applicazioni ObjectBox o plugin Spigot che condividono la libreria nativa su Windows e Linux. Il lavoro è completo quando entrambi gli utenti possono inizializzare ObjectBox senza LinkageError o FileNotFoundException mentre le loro librerie native vengono caricate contemporaneamente.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
java
Ambito
databases
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Ferma
Chiarezza
Specificata chiaramente
Idoneità per principianti
42/100

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