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Using APEX 21.2 SAML Authentication encounter ORA-30625:Method dispatch on NULL SELF argument is disallowed (Doc ID 2847617.1)

Last updated on MARCH 09, 2022

Applies to:

Oracle Application Express (APEX) - Version 21.2 and later
APEX Application Development - Version NA and later
Information in this document applies to any platform.

Symptoms

APEX 21.2 SAML Authentication

Trying to authenticate APEX application using the new SAML Authentication when the IdP returns the response APEX crashes with the message:

Error Processing Request.
Contact your applicatio administrator. Details about this instance area available via debug id "xxxxx"

Looking at the debug the following error is occurrning:

Exception in "final_exception_handler":
Error Stack: ORA-30625: method dispatch on NULL SELF argument is disallowed
ORA-06512: at "APEX_210200.WWV_FLOW_XML_SECURITY", line 1126
ORA-06512: at "APEX_210200.WWV_FLOW_XML_SECURITY", line 1307
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION_SAML", line 462
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION_NATIVE", line 1268
ORA-06512: at "APEX_210200.WWV_FLOW_PLUGIN", line 3500
ORA-06512: at "APEX_210200.WWV_FLOW_PLUGIN", line 4097
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION", line 1688
Backtrace: ORA-06512: at "APEX_210200.WWV_FLOW_XML_SECURITY", line 1126
ORA-06512: at "APEX_210200.WWV_FLOW_XML_SECURITY", line 1307
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION_SAML", line 462
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION_NATIVE", line 1268
ORA-06512: at "APEX_210200.WWV_FLOW_PLUGIN", line 3500
ORA-06512: at "APEX_210200.WWV_FLOW_PLUGIN", line 4097
ORA-06512: at "APEX_210200.WWV_FLOW_AUTHENTICATION", line 1688
ORA-06512: at "APEX_210200.WWV_FLOW", line 2519

ERROR
-----------------------
ORA-30625: method dispatch on NULL SELF argument is disallowed




STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Configure APEX 21.2 instance for SAML Authentication
2. Configure Application with SAML Instance
3. Observe ORA-30625: method dispatch on NULL SELF argument is disallowed appears in response.

Cause

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In this Document
Symptoms
Cause
Solution
References


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