Getting Errors ORA-30683 and ORA-12535 When Debugging PL/SQL Using JDeveloper. (Doc ID 469101.1)

Last updated on AUGUST 04, 2016

Applies to:

Oracle JDeveloper - Version 10.1.3.0.4 to 12.1.3.0.0 [Release Oracle10g to 12c]
Information in this document applies to any platform.
**** checked 31-Oct-2012 *******

Symptoms

When attempting to debug PL/SQL from JDeveloper the following error occurs.

Connecting to the database MyHRConn.
Executing PL/SQL: ALTER SESSION SET PLSQL_DEBUG=TRUE
Executing PL/SQL: CALL DBMS_DEBUG_JDWP.CONNECT_TCP( '172.16.26.237', '4717' )
ORA-30683: failure establishing connection to debugger
ORA-12535: TNS:operation timed out
ORA-06512: at "SYS.DBMS_DEBUG_JDWP", line 68
ORA-06512: at line 1
Process exited.
Disconnecting from the database MyHRConn.

Cause

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