PI76439: APPLICATION CLIENT MODULE CREATED WHEN EMPTY "MAIN-CLASS:" FOUND IN MANIFEST.MF OF JAR

Fixes are available

APAR status

Closed as program error.

Error description

An extraneous "Main-class:" attribute with no class specified
will cause the application server to configure the JAR as an
application client module during deployment.
It also adds the empty class name to the list of classes to be
searched for annotations.
This results in the following warning message in the log file.

16/11/10 13:34:38:157 JST  00000053 annotations   W
com.ibm.ws.amm.scan.context.ScannerContextImpl
getInputDataForClass Failed to open resource " .class " from
module

Local fix

```
N/A
```

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server                                      *
****************************************************************
* PROBLEM DESCRIPTION: Warning message "Failed to open         *
*                      resource " .class " from module "       *
*                      moduleName.jar " is seen during         *
*                      application deployment.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The problem occurs when the MANIFEST.MF file of a JAR contains
a "Main-class:" attribute without a class name.  The
application server incorrectly uses a single space as the
class name; " .class".  The warning message occurs during
annotation scanning because the class is not found.
The presence of the "Main-class:" attribute also causes the
JAR to be configured as an application client module, but
since no actual main class name is provided the module cannot
be launched.

Problem conclusion

The code has been modified so that an empty "Main-class:"
attribute provides the same result as if no "Main-class:"
attribute were specified in the MANFEST.MF.

A JAR with a MANIFEST.MF containing an empty "Main-class:" will
not be configured as an application client module unless it
also contains an application-client.xml file.

A warning message will still be generated, but it will more
correctly reflect the actual problem:
"Main-class: attribute found in manifest.mf without a value.
Setting Main class to null."

The fix for this APAR is currently targeted for inclusion in
fix packs 8.0.0.14, 8.5.5.12, 9.0.0.4.  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
PI76439
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-02-10
Closed date
2017-03-28
Last modified date
2017-03-28

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
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R800 PSY
UP
R850 PSY
UP
R900 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":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI76439: APPLICATION CLIENT MODULE CREATED WHEN EMPTY "MAIN-CLASS:" FOUND IN MANIFEST.MF OF JAR

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

R800 PSY

R850 PSY

R900 PSY

Document Information

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