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. Error Code: 0

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via Oracle Community by Olivier Chorier Guest, 1 year ago
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. Error Code: 0
via Oracle Community by nye'e, 1 year ago
Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect. Error Code: 0
via Stack Overflow by user3557759
, 2 years ago
Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect. Error Code: 0
via Stack Overflow by Unknown author, 2 years ago
Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect. Error Code: 0
via Oracle Community by Wong Peter Guest, 1 year ago
Error in allocating a connection. Cause: Connection could not be allocated because: ORA-01005: null password given; logon denied Error Code: 0
via soso.io by Unknown author, 1 year ago
The exception 'java.lang.ClassCastException: java.nio.file.NoSuchFileException cannot be cast to java.lang.RuntimeException' was thrown while evaluating an expression. Error Code: 20000 Call: CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE(?) bind => [1 parameter bound] Query: ResultSetMappingQuery()
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. Error Code: 0
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:309)

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