objectbox / objectbox/objectbox-java
LinkageError when two programs use ObjectBox and share the same .dll.
まだ誰も着手していません。
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説明
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:
- Create two projects that use ObjectBox and place them in the same folder.
- Execute each application
- See error
Way to reproduce the behaviour USING Spigot plugins:
- Create two Spigot plugins that use ObjectBox.
- Place the plugins under the
\pluginsfolder. - 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, theobjectbox-jni-windows-x64is 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 theobjectbox-jni-windows-x64file 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.
コントリビューションガイド
このリポジトリのコントリビューションガイドは索引されていません
はじめの一歩
- issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
- 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
- リポジトリをフォークし、ブランチを切って変更します。
- issue 番号を参照したプルリクエストを送ります。
調査の方向性
まず、227 行目の io.objectbox.internal.NativeLibraryLoader.checkUnpackLib と関連する issue #973 を確認し、その後、Windows と Linux でネイティブライブラリを共有する 2 つの ObjectBox アプリケーションまたは Spigot プラグインを再現してください。両方のユーザーが、ネイティブライブラリの読み込みが同時に行われる場合でも、LinkageError や FileNotFoundException なしで ObjectBox を初期化できれば完了です。
索引モデルが issue の本文から書いたものです。
評価
- 技術スタック
- java
- 領域
- databases
- issue の種類
- バグ
- 難易度
- 4/5
- 見積もり時間
- 3〜5日
- 活発さ
- 停滞
- 明瞭さ
- 明確に書かれている
- 初心者へのやさしさ
- 42/100