ru.runa.wf.logic.bot.TaskHandlerException: java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)

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    ru.runa.wf.logic.bot.TaskHandlerException: java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)
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    Root Cause Analysis

    1. java.sql.SQLException

      Access denied for user ''@'localhost' (using password: NO)

      at com.mysql.jdbc.MysqlIO.checkErrorPacket()
    2. MySQL jdbc
      NonRegisteringDriver.connect
      1. com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2847)
      2. com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:750)
      3. com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3558)
      4. com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1151)
      5. com.mysql.jdbc.Connection.createNewIO(Connection.java:1768)
      6. com.mysql.jdbc.Connection.<init>(Connection.java:430)
      7. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:268)
      7 frames
    3. Java RT
      DriverManager.getConnection
      1. java.sql.DriverManager.getConnection(DriverManager.java:525)
      2. java.sql.DriverManager.getConnection(DriverManager.java:193)
      2 frames
    4. ru.runa.wf
      WorkflowBotInvoker$BotThread.run
      1. ru.runa.wf.logic.bot.DatabaseTaskHandler.handle(DatabaseTaskHandler.java:100)
      2. ru.runa.wf.logic.bot.WorkflowMultitaskBot.doTask(WorkflowMultitaskBot.java:144)
      3. ru.runa.wf.logic.bot.WorkflowMultitaskBot.execute(WorkflowMultitaskBot.java:118)
      4. ru.runa.wf.logic.bot.WorkflowBotInvoker$BotThread.run(WorkflowBotInvoker.java:97)
      4 frames