java.sql.SQLException: Unable to instantiate logger class 'com.mysql.jdbc.log.Log4JLogger', exception in constructor?

jsystemtest | bennid | 8 years ago
  1. 0

    Problem publishing to the DB

    jsystemtest | 8 years ago | bennid
    java.sql.SQLException: Unable to instantiate logger class 'com.mysql.jdbc.log.Log4JLogger', exception in constructor?
  2. 0

    MySQL Bugs: #9976: Unable to instantiate logger class 'com.mysql.jdbc.log.Log4JLogger'

    mysql.com | 10 months ago
    java.sql.SQLException: Unable to instantiate logger class 'com.mysql.jdbc.log.Log4JLogger', exception in constructor?
  3. 0

    JDBC:Connection Issue When Run program

    Stack Overflow | 1 year ago | hamel123
    java.sql.SQLException: Must specify port after ':' in connection string
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  5. 0

    Access remote Db

    Stack Overflow | 2 years ago | SkyLark
    java.sql.SQLException: Access denied for user 'user1'@'hostname' (using password: YES)
  6. 0

    Installation error

    infoglue | 10 years ago | nobody
    java.sql.SQLException: Invalid authorization specification message from server: "Access denied for user 'root'@'localhost' (using password: NO)"

  1. linxiaolong 2 times, last 1 month ago
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Root Cause Analysis

  1. java.sql.SQLException

    Unable to instantiate logger class 'com.mysql.jdbc.log.Log4JLogger', exception in constructor?

    at com.mysql.jdbc.log.LogFactory.getLogger()
  2. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.log.LogFactory.getLogger(LogFactory.java:85)
    2. com.mysql.jdbc.Connection.initializeDriverProperties(Connection.java:3619)
    3. com.mysql.jdbc.Connection.<init>(Connection.java:1471)
    4. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:264)
    4 frames