PI87557: NULL POINTER EXCEPTION IN WLP 17.0.0.2

Fixes are available

APAR status

Closed as program error.

Error description

Customer has a REST API running in WLP whose security is
provided by the TrustAssociationInterceptor (TAI) interface.
They have a test which sends a request to the API with an
invalid LTPA token which results in a NPE coming back from
the
WLP web container:
TAI being driven. The TAI normally only gets in the way when
a
login request comes in, in which case we expect that the
user
id and password has already been validated by DataPower
which
intercepts the request before it gets to WLP. As this
request
is associated with an LTPA token the DataPower logic doesn't
do
the intercept as it can't possibly tell if the LTPA token
provided by WLP via the TAI is valid or not. As a result the
TAI says it can't intercept this request as we can
detect that DataPower hasn't performed the intercept.)
NullPointerException  in
com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFil
ters
1105

Local fix

```
Still in progress..
```

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server Liberty - Security                   *
****************************************************************
* PROBLEM DESCRIPTION: NullPointerException is thrown when TAI *
*                      returns NULL TAIResult                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When TAI returns null result,  audit function throws
NullPointerException while trying to access TAIResult data.

-- Sample Exception when this issue happens ---

[9/4/17 7:49:20:668 EDT] 0000010e id=
com.ibm.ws.webcontainer.webapp.WebApp handleRequest SRVE0315E:
An exception occurred: java.lang.Throwable:
java.lang.NullPointerException
at
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:
5027)
at
com.ibm.ws.webcontainer31.osgi.webapp.WebApp31.handleRequest(Web
App31.java:528)

...
Caused by: java.lang.NullPointerException
at
com.ibm.ws.webcontainer.security.WebAppSecurityCollaboratorImpl.
determineWebReply(WebAppSecurityCollaboratorImpl.java:952)
at
com.ibm.ws.webcontainer.security.WebAppSecurityCollaboratorImpl.
determineWebReply(WebAppSecurityCollaboratorImpl.java:914)
at
com.ibm.ws.webcontainer.security.WebAppSecurityCollaboratorImpl.
performSecurityChecks(WebAppSecurityCollaboratorImpl.java:625)
at
com.ibm.ws.webcontainer.security.WebAppSecurityCollaboratorImpl.
preInvoke(WebAppSecurityCollaboratorImpl.java:539)
at
com.ibm.wsspi.webcontainer.collaborator.CollaboratorHelper.preIn
vokeCollaborators(CollaboratorHelper.java:458)
...
--------------------

Problem conclusion

Null check has been added to avoid NullPointerException.   This
issue was fixed by Issue #106 in OpenLiberty.
(https://github.com/OpenLiberty/open-liberty/issues/106)

The fix for this APAR is currently targeted for inclusion in fix
pack 17.0.0.4.  Please refer to the Recommended Updates page for
delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Comments

APAR Information

APAR number
PI87557
Reported component name
LIBERTY PROFILE
Reported component ID
5724J0814
Reported release
CD0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-09-19
Closed date
2017-11-28
Last modified date
2017-11-28

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
LIBERTY PROFILE
Fixed component ID
5724J0814

Applicable component levels

RCD0 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI87557: NULL POINTER EXCEPTION IN WLP 17.0.0.2

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

RCD0 PSY

Document Information

Share your feedback

Need support?