Android應用程序中的StackOverflowError

Question

如果你分析下面的代碼，你會看到有4個函數被調用多次（pushNextEntityUpdatedRows，pushNextUpdatedRow，pushNextEntityCreatedRows，pushNextCreatedRow），那不是一個BUG，這就是我如何設計我的代碼工作。你應該知道的是，我有一個擴展了SQLiteOpenHelper的類（DataAccess），我只實例化了這個類。每當功能pushNextEntityUpdatedRows和pushNextEntityCreatedRows被調用時，rawQuery在我的DataAccess類實例中執行。我從不關閉連接，只關閉Cursor對象實例。我不知道是什麼造成這個StackOverflowError。我也不知道爲什麼它總是在145次調用後發生。我如何解決它？感謝提前。

堆棧跟蹤告訴我：

java.lang.StackOverflowError 
    at java.util.WeakHashMap.poll(WeakHashMap.java:550) 
    at java.util.WeakHashMap.put(WeakHashMap.java:589) 
    at android.database.sqlite.SQLiteConnectionPool.finishAcquireConnectionLocked(SQLiteConnectionPool.java:980) 
    at android.database.sqlite.SQLiteConnectionPool.tryAcquirePrimaryConnectionLocked(SQLiteConnectionPool.java:916) 
    at android.database.sqlite.SQLiteConnectionPool.waitForConnection(SQLiteConnectionPool.java:682) 
    at android.database.sqlite.SQLiteConnectionPool.acquireConnection(SQLiteConnectionPool.java:400) 
    at android.database.sqlite.SQLiteSession.acquireConnection(SQLiteSession.java:905) 
    at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:586) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
    at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37) 
    at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 
    at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1436) 
    at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1375) 
    at mz.co.cloud.dumbo.db.LSH.getAllNewCreatedRows(LSH.java:2072) 
    at mz.co.cloud.dumbo.syncmechanism.SyncDataAccessImplementation.getAllNewCreatedRows(SyncDataAccessImplementation.java:182) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1039) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1169) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1154) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextCreatedRow(SyncWorker.java:1355) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityCreatedRows(SyncWorker.java:1046) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:714) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextUpdatedRow(SyncWorker.java:1020) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushNextEntityUpdatedRows(SyncWorker.java:704) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.pushData(SyncWorker.java:678) 
    at mz.co.cloud.dumbo.syncmechanism.SyncWorker.startWork(SyncWorker.java:197) 
    at mz.co.cloud.dumbo.syncmechanism.DumboSync$1.onMessage(DumboSync.java:213) 
    at com.pier.PierClient$1.run(PierClient.java:268) 
    at com.pier.core.WorkQueue$PoolWorker.run(WorkQueue.java:81) 

Answer 1

看起來就像你有一個循環或某處遞歸函數不達到循環/功能的中斷/結束。大多數情況下，當您使用if語句檢查遞歸函數的結束時會發生這種情況，但實際上它絕不會更改if語句的條件。而在某個時候，你的計算機沒有足夠的「思維空間」去往兔子洞的更遠處。 （因爲每次迭代佔用整個空間的某個部分以簡單的方式說出來，顯然在145次迭代中你已經達到了極限）

沒有代碼，我們不能真的幫你在這裏，如何添加一個示例代碼？