java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)

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    runawfe | 1 decade ago | yilativs 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
      1. com.mysql.jdbc.MysqlIO.checkErrorPacket(
      2. com.mysql.jdbc.MysqlIO.checkErrorPacket(
      3. com.mysql.jdbc.MysqlIO.secureAuth411(
      4. com.mysql.jdbc.MysqlIO.doHandshake(
      5. com.mysql.jdbc.Connection.createNewIO(
      6. com.mysql.jdbc.Connection.<init>(
      7. com.mysql.jdbc.NonRegisteringDriver.connect(
      7 frames
    3. Java RT
      1. java.sql.DriverManager.getConnection(
      2. java.sql.DriverManager.getConnection(
      2 frames
      4 frames