My Oracle Support Banner

java.sql.SQLException: Protocol violation In WebLogic Server 10.3.6 (Doc ID 1918210.1)

Last updated on JUNE 05, 2023

Applies to:

JDBC - Version 11.2.0.3.0 and later
Information in this document applies to any platform.

Symptoms

After upgrade to Weblogic server 11g (10.3.6.0) and Jdk7 (1.7_21), application started to report the following error:

Server STDOUT log:
managed1.stdout: <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.stdout: <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.stdout: <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.stdout: <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>

Server Log:
managed1.log:#### <> <> <> <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.log:#### <> <> <> <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.log:#### <> <> <> <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>
managed1.log:#### <> <> <> <Test "SELECT 1 FROM DUAL" set up for pool "<NAME>" failed with exception: "java.sql.SQLException: Protocol violation: [23, 0]".>


Application Logs:
 org.hibernate.transaction.JDBCTransaction rollback - JDBC rollback failed java.sql.SQLException: Protocol violation
  at oracle.jdbc.driver.T4CTTIfun.readDCB(T4CTTIfun.java:653)
 org.hibernate.transaction.JDBCTransaction rollback - JDBC rollback failed java.sql.SQLException: Protocol violation
  at oracle.jdbc.driver.T4CTTIfun.readDCB(T4CTTIfun.java:653)
  at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:421)
 org.hibernate.transaction.JDBCTransaction rollback - JDBC rollback fail

Oracle database version is 11.2.0.2.

Observation:
The system was working fine with Weblogic 10g (10.3.0) jdk6 (1.6.0_31-b04) and Oracle database version 11.2.0.2.

Changes

 Upgrade from WebLogic 10.3.0 to WebLogic 10.3.6.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.