java.sql.SQLException: Protocol violation

You have isntalled SOA Suite and have not used it for quite some time Now when you are trying to start your SOA suite it is giving the following issues


java.sql.SQLException: Protocol violation
log4j:WARN No appenders could be found for logger (wsif).
log4j:WARN Please initialize the log4j system properly.

oracle.jdbc.driver.T4CConnection

This issue most probably occurs you application server is not able to connect to the database.

Verify that your listener is up and running.

Verify if you are able to log in to the orabpel,oraesb and orawsm with their password.this issue occurs if the password for the schmeas have expired.

In order to resolve this issue.Change the password for all the users.

Stop SOA Suite
Stop database
Stop listener
start listener
start database
start SOA suite.