java.util.concurrent.CompletionException: com.speedment.exception.SpeedmentException: Unable to get connection for DbmsImpl {"expanded": true, "port": 3306.0, "schemas": [0], "name": database, "typeName": MySQL, "ipAddress": 127.0.0.1, "connectionUrl": jdbc:mysql://127.0.0.1:3306/?useUnicode=true&characterEncoding=UTF-8&useServerPrepStmts=true&useCursorFetch=true&zeroDateTimeBehavior=convertToNull&useSSL=false, "enabled": true, "username": accounting} using url "jdbc:mysql://127.0.0.1:3306/?useUnicode=true&characterEncoding=UTF-8&useServerPrepStmts=true&useCursorFetch=true&zeroDateTimeBehavior=convertToNull&useSSL=false", user = accounting, password = ********

GitHub | Pyknic | 8 months ago
  1. 0

    Compability issue with later versions of MySQL connector

    GitHub | 8 months ago | Pyknic
    java.util.concurrent.CompletionException: com.speedment.exception.SpeedmentException: Unable to get connection for DbmsImpl {"expanded": true, "port": 3306.0, "schemas": [0], "name": database, "typeName": MySQL, "ipAddress": 127.0.0.1, "connectionUrl": jdbc:mysql://127.0.0.1:3306/?useUnicode=true&characterEncoding=UTF-8&useServerPrepStmts=true&useCursorFetch=true&zeroDateTimeBehavior=convertToNull&useSSL=false, "enabled": true, "username": accounting} using url "jdbc:mysql://127.0.0.1:3306/?useUnicode=true&characterEncoding=UTF-8&useServerPrepStmts=true&useCursorFetch=true&zeroDateTimeBehavior=convertToNull&useSSL=false", user = accounting, password = ********
  2. 0

    NPE when running from CLI

    GitHub | 2 years ago | dcrissman
    java.lang.NullPointerException
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  4. 0

    PROBLEM

    GitHub | 2 years ago | mineyannik
    java.lang.RuntimeException: java.lang.ExceptionInInitializerError
  5. 0

    load properties file from class path

    Stack Overflow | 3 years ago | Haridharan
    java.lang.NullPointerException

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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.util.Properties$LineReader.readLine()
  2. Java RT
    Properties.load
    1. java.util.Properties$LineReader.readLine(Properties.java:434)
    2. java.util.Properties.load0(Properties.java:353)
    3. java.util.Properties.load(Properties.java:341)
    3 frames
  3. com.mysql.cj
    NonRegisteringDriver.connect
    1. com.mysql.cj.jdbc.util.TimeUtil.loadTimeZoneMappings(TimeUtil.java:163)
    2. com.mysql.cj.jdbc.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:109)
    3. com.mysql.cj.mysqla.MysqlaSession.configureTimezone(MysqlaSession.java:308)
    4. com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:2474)
    5. com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:1817)
    6. com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1673)
    7. com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:656)
    8. com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:349)
    9. com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:221)
    9 frames
  4. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:664)
    2. java.sql.DriverManager.getConnection(DriverManager.java:247)
    2 frames
  5. com.speedment.internal
    AbstractRelationalDbmsHandler.lambda$readSchemaMetadata$4
    1. com.speedment.internal.core.platform.component.impl.ConnectionPoolComponentImpl.newConnection(ConnectionPoolComponentImpl.java:111)
    2. com.speedment.internal.core.platform.component.impl.ConnectionPoolComponentImpl.getConnection(ConnectionPoolComponentImpl.java:81)
    3. com.speedment.internal.core.db.AbstractRelationalDbmsHandler.getConnection(AbstractRelationalDbmsHandler.java:913)
    4. com.speedment.internal.core.db.AbstractRelationalDbmsHandler.lambda$readSchemaMetadata$4(AbstractRelationalDbmsHandler.java:179)
    4 frames
  6. Java RT
    ForkJoinWorkerThread.run
    1. java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626)
    2. java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1618)
    3. java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
    4. java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
    5. java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
    6. java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
    6 frames