java.sql.SQLException: Erreur lors de l'allocation d'une connexion. Cause : Connection could not be allocated because: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

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    Root Cause Analysis

    1. java.sql.SQLException

      Erreur lors de l'allocation d'une connexion. Cause : Connection could not be allocated because: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

      at com.sun.gjc.spi.base.DataSource.getConnection()
    2. Embedded GlassFish Web
      DataSource.getConnection
      1. com.sun.gjc.spi.base.DataSource.getConnection(DataSource.java:120)
      1 frame
    3. EclipseLink (non-OSGi)
      JNDIConnector.connect
      1. org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:123)
      1 frame