My Oracle Support Banner

TNS-1153 Failed to Process String / NL-00303 syntax error in NV string Reported in Listener Log for JDBC Connections (Doc ID 982687.1)

Last updated on FEBRUARY 27, 2019

Applies to:

Oracle Net Services - Version to [Release 10.2 to 11.1]
Information in this document applies to any platform.
Connection from version and newer.


JDBC OCI connections report NL-00303: syntax error in NV string and TNS-01153: Failed to process string in the listener log file.
Strange characters can be seen in the listener log entries for the connection.
Example here shows I^A^


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

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