java.lang.NullPointerException: Attempt to invoke interface method 'void java.sql.PreparedStatement.close()' on a null object reference

Stack Overflow | jhegedus | 7 months ago
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    Slick 3.0 Using AutoInc Primary key value in following update gives NullPointerException

    Stack Overflow | 7 months ago | jhegedus
    java.lang.NullPointerException: Attempt to invoke interface method 'void java.sql.PreparedStatement.close()' on a null object reference
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    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'void java.sql.PreparedStatement.close()' on a null object reference

      at slick.jdbc.JdbcBackend$SessionDef$class.withPreparedInsertStatement()
    2. slick.jdbc
      JdbcBackend$BaseSession.withPreparedInsertStatement
      1. slick.jdbc.JdbcBackend$SessionDef$class.withPreparedInsertStatement(JdbcBackend.scala:309)
      2. slick.jdbc.JdbcBackend$BaseSession.withPreparedInsertStatement(JdbcBackend.scala:386)
      2 frames
    3. slick.driver
      JdbcActionComponent$InsertActionComposerImpl$$anon$8.run
      1. slick.driver.JdbcInsertInvokerComponent$ReturningInsertInvoker.preparedInsert(JdbcInsertInvokerComponent.scala:321)
      2. slick.driver.JdbcInsertInvokerComponent$BaseInsertInvoker.internalInsert(JdbcInsertInvokerComponent.scala:187)
      3. slick.driver.JdbcInsertInvokerComponent$BaseInsertInvoker.insert(JdbcInsertInvokerComponent.scala:182)
      4. slick.driver.JdbcInsertInvokerComponent$InsertInvokerDef$class.$plus$eq(JdbcInsertInvokerComponent.scala:72)
      5. slick.driver.JdbcInsertInvokerComponent$BaseInsertInvoker.$plus$eq(JdbcInsertInvokerComponent.scala:152)
      6. slick.driver.JdbcActionComponent$InsertActionComposerImpl$$anonfun$$plus$eq$1.apply(JdbcActionComponent.scala:457)
      7. slick.driver.JdbcActionComponent$InsertActionComposerImpl$$anonfun$$plus$eq$1.apply(JdbcActionComponent.scala:457)
      8. slick.driver.JdbcActionComponent$InsertActionComposerImpl$$anon$8.run(JdbcActionComponent.scala:449)
      9. slick.driver.JdbcActionComponent$InsertActionComposerImpl$$anon$8.run(JdbcActionComponent.scala:447)
      9 frames
    4. slick.backend
      DatabaseComponent$DatabaseDef$$anon$2.run
      1. slick.backend.DatabaseComponent$DatabaseDef$$anon$2.liftedTree1$1(DatabaseComponent.scala:231)
      2. slick.backend.DatabaseComponent$DatabaseDef$$anon$2.run(DatabaseComponent.scala:231)
      2 frames
    5. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
      3. java.lang.Thread.run(Thread.java:818)
      3 frames