PM46698: STUBS AND TIES GENERATED FOR EJB 3.0 ARE NOT COMPATIBLE WITH STUBS AND TIES GENERATED BY RMIC

Fixes are available

APAR status

Closed as program error.

Error description

RMI/IIOP interfaces generated for EJB 3.0 are not backward
compatible, which might cause errors such as

java.lang.OutOfMemoryError
at com.ibm.rmi.iiop.CDRReader.readBytesForString
(CDRReader.java:2279)
at com.ibm.rmi.iiop.CDRReader.readStringOrIndirection
(CDRReader.java:472)
at com.ibm.rmi.iiop.CDRReader.read_codebase_URL
(CDRReader.java:2852)
at com.ibm.rmi.iiop.CDRReader.fast_read_value
(CDRReader.java:1893)
at com.ibm.rmi.iiop.CDRReader.read_value
(CDRReader.java:2000)
at com.ibm.example._EJB3_Stub.method(Unknown Source)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server V7.0 and   *
*                  V8.0 users of Enterprise Java Beans (EJB)   *
*                  3.0 with remote interfaces.                 *
****************************************************************
* PROBLEM DESCRIPTION: Stubs and ties generated for EJB 3.0    *
*                      are not compatible with stubs and       *
*                      ties generated by rmic.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
EJB 3.0 allows remote business interfaces that do not extend
java.rmi.Remote, but EJB container still uses IIOP stubs for
these interfaces.  Because the interface is not considered to
be an RMI abstract interface, these stubs would normally be
marshalled using write_value, which means the ORB would not
reconnect them when they are unmarshalled by a client using
read_value.  To avoid this problem, stubs and ties generated
by the EJB container always use write_abstract_interface and
read_abstract_interface, which makes them incompatible with
stubs and ties that are generated by rmic.

Problem conclusion

An option has been added that allows EJB container to generate
stubs and ties that are compatible with rmic.  When this
option is used, the stubs and ties that are generated will not
be compatible with clients or servers that are not using this
option.

To enable the fix in application servers:
1. Open the administrative console.
2. Select Servers.
3. Select Servers > Application servers > server_name.
4. Under Server infrastructure, select Java and Process
Management > Process Definition.
5. Under Additional properties, select Java virtual machine >
Custom properties > New.
6. In the Name entry field, type:
com.ibm.websphere.ejbcontainer.rmicCompatible
7. In the Value entry field, type: values
This enables rmic-compatible use of read_value/write_value
8. Select OK.

To enable the fix in application clients, specify the
following option when running the launchClient command:
-CCDcom.ibm.websphere.ejbcontainer.rmicCompatible=values

To enable the fix while generating stubs for thinclient
environments, use the following option when running the
createEJBStubs command:
-rmic values

Additionally, thinclient environments must be using a
com.ibm.ws.ejb.thinclient or com.ibm.ws.ejbportable JAR from
an installation with the fix installed.

The fix for this APAR is currently targeted for inclusion in
fix packs 7.0.0.21 and 8.0.0.2.  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
PM46698
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-08-30
Closed date
2011-09-16
Last modified date
2011-09-16

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

PM55677

Fix information

Fixed component name
WEBSPHERE APP S
Fixed component ID
5724J0800

Applicable component levels

R700 PSY
UP
R800 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":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021

Tips

PM46698: STUBS AND TIES GENERATED FOR EJB 3.0 ARE NOT COMPATIBLE WITH STUBS AND TIES GENERATED BY RMIC

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

R700 PSY

R800 PSY

Document Information

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