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  1. java.sql.SQLException: The url cannot be null
  2. at java.sql.DriverManager.getConnection(Unknown Source)
  3. at java.sql.DriverManager.getConnection(Unknown Source)
  4. at tools.DatabaseConnection.connectToDB(DatabaseConnection.java:82)
  5. at tools.DatabaseConnection.getConnection(DatabaseConnection.java:31)
  6. at net.world.WorldRegistryImpl.<init>(WorldRegistryImpl.java:81)
  7. at net.world.WorldRegistryImpl.getInstance(WorldRegistryImpl.java:102)
  8. at net.world.WorldServer.main(WorldServer.java:37)
  9. java.lang.NullPointerException
  10. at net.world.WorldRegistryImpl.<init>(WorldRegistryImpl.java:81)
  11. at net.world.WorldRegistryImpl.getInstance(WorldRegistryImpl.java:102)
  12. at net.world.WorldServer.main(WorldServer.java:37)
  13. Exception in thread "main" java.rmi.NotBoundException: WorldRegistry
  14. at sun.rmi.registry.RegistryImpl.lookup(Unknown Source)
  15. at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
  16. at sun.rmi.server.UnicastServerRef.oldDispatch(Unknown Source)
  17. at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
  18. at sun.rmi.transport.Transport$1.run(Unknown Source)
  19. at java.security.AccessController.doPrivileged(Native Method)
  20. at sun.rmi.transport.Transport.serviceCall(Unknown Source)
  21. at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
  22. at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Sou
  23. rce)
  24. at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Sour
  25. ce)
  26. at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source
  27. )
  28. at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  29. at java.lang.Thread.run(Unknown Source)
  30. at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknow
  31. n Source)
  32. at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
  33. at sun.rmi.server.UnicastRef.invoke(Unknown Source)
  34. at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
  35. at net.channel.ChannelServer.main(ChannelServer.java:365)
  36. Press any key to continue . . . java.sql.SQLException: The url cannot be null
  37. at java.sql.DriverManager.getConnection(Unknown Source)
  38. at java.sql.DriverManager.getConnection(Unknown Source)
  39. at tools.DatabaseConnection.connectToDB(DatabaseConnection.java:82)
  40. at tools.DatabaseConnection.getConnection(DatabaseConnection.java:31)
  41. at net.login.RankingWorker.run(RankingWorker.java:37)
  42. at server.TimerManager$LoggingSaveRunnable.run(TimerManager.java:118)
  43. at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
  44. at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)
  45.  
  46. [????] ??? 8484??? ?????. at java.util.concurrent.FutureTask.runAndReset(U
  47. nknown Source)
  48.  
  49. at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
  50. access$101(Unknown Source)
  51. at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
  52. runPeriodic(Unknown Source)
  53. at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
  54. run(Unknown Source)
  55. at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source
  56. )
  57. at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  58. at java.lang.Thread.run(Unknown Source)
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