java.lang.NullPointerException

mysql.com | 6 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at com.mysql.jdbc.MysqlIO.<init>()
  2. MySQL jdbc
    MysqlIO.<init>
    1. com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:283)
    1 frame
  3. mysace
    Fra_login.actionPerformed
    1. mysace.Fra_login.actionPerformed(Fra_login.java:91)
    1 frame
  4. Java RT
    LightweightDispatcher.retargetMouseEvent
    1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    6. java.awt.Component.processMouseEvent(Component.java:6038)
    7. javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
    8. java.awt.Component.processEvent(Component.java:5803)
    9. java.awt.Container.processEvent(Container.java:2058)
    10. java.awt.Component.dispatchEventImpl(Component.java:4410)
    11. java.awt.Container.dispatchEventImpl(Container.java:2116)
    12. java.awt.Component.dispatchEvent(Component.java:4240)
    13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    13 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Connection.createNewIO(Connection.java:2541)
    2. com.mysql.jdbc.Connection.<init>(Connection.java:1474)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:264)
    3 frames
  6. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:582)
    2. java.sql.DriverManager.getConnection(DriverManager.java:185)
    2 frames
  7. mysace
    Fra_login.actionPerformed
    1. mysace.Metodos.carga_db(Metodos.java:97)
    2. mysace.Fra_login.actionPerformed(Fra_login.java:89)
    2 frames
  8. Java RT
    EventDispatchThread.run
    1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    6. java.awt.Component.processMouseEvent(Component.java:6038)
    7. javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
    8. java.awt.Component.processEvent(Component.java:5803)
    9. java.awt.Container.processEvent(Container.java:2058)
    10. java.awt.Component.dispatchEventImpl(Component.java:4410)
    11. java.awt.Container.dispatchEventImpl(Container.java:2116)
    12. java.awt.Component.dispatchEvent(Component.java:4240)
    13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    14. java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
    15. java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
    16. java.awt.Container.dispatchEventImpl(Container.java:2102)
    17. java.awt.Window.dispatchEventImpl(Window.java:2429)
    18. java.awt.Component.dispatchEvent(Component.java:4240)
    19. java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    20. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
    21. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
    22. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
    23. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
    24. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
    25. java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
    25 frames