java.sql.SQLException: The Network Adapter could not establish the connection at oracle.jdbc.driver.T4CConnection.logon(T4CConnecti on.java:412) at oracle.jdbc.driver.PhysicalConnection.<init> (PhysicalConnection.java:531) at oracle.jdbc.driver.T4CConnection.<init>(T4CC onnection.java:221) at oracle.jdbc.driver.T4CDriverExtension.getConnectio n(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriv er.java:503)

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Root Cause Analysis

  1. java.sql.SQLException

    The Network Adapter could not establish the connection at oracle.jdbc.driver.T4CConnection.logon(T4CConnecti on.java:412) at oracle.jdbc.driver.PhysicalConnection.<init> (PhysicalConnection.java:531) at oracle.jdbc.driver.T4CConnection.<init>(T4CC onnection.java:221) at oracle.jdbc.driver.T4CDriverExtension.getConnectio n(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriv er.java:503)

    at java.sql.DriverManager.getConnection()
  2. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(Unknown Source)
    2. java.sql.DriverManager.getConnection(Unknown Source)
    2 frames
  3. Unknown
    MysqlConnect.main
    1. MysqlConnect.main(MysqlConnect.java:15)
    1 frame