PI06031: JAVA.LANG.RUNTIMEEXCEPTION: INVALID CALL TO WSBYTEBUFFER METHOD. BUFFER HAS ALREADY BEEN RELEASED.

Fixes are available

APAR status

Closed as program error.

Error description

Exception reported with WebSphere z/OS Fixpack 7.0.0.27


Exception in thread "ChannelFramework Threadpool : 0"
java.lang.RuntimeException: Invalid call to WsByteBuffer method.
  Buffer has already been released.
 WsByteBuffer: ID: 1
 Buffer: java.nio.DirectByteBuffer[pos=0 lim=50 cap=8192]
  at
com.ibm.ws.buffermgmt.impl.WsByteBufferImpl.checkValidity(WsByte
BufferImpl.java:2109)
  at
com.ibm.ws.buffermgmt.impl.WsByteBufferImpl.release(WsByteBuffer
Impl.java:1959)
  at
com.ibm.wsspi.buffermgmt.WsByteBufferUtils.releaseBufferArray(Ws
ByteBufferUtils.java:262)
  at
com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.releaseBuff
ers(ZIOPInboundMessageHandler.java:675)
  at
com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.error(ZIOPI
nboundMessageHandler.java:244)
  at
com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.readComplet
e(ZIOPInboundMessageHandler.java:310)
  at
com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.readFirstMe
ssage(ZIOPInboundMessageHandler.java:124)
  at
com.ibm.ws390.channel.ziop.ZIOPInboundConnLink.ready(ZIOPInbound
ConnLink.java:148)
at
com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sen
dToDiscriminators(NewConnectionInitialReadCallback.java:214)
  at
com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.com
plete(NewConnectionInitialReadCallback.java:113)
  at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(Wor
kQueueManager.java:557)
  at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueue
Manager.java:607)
  at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueue
Manager.java:984)
  at
com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueu
eManager.java:1069)
  at
com.ibm.wsspi.runtime.ThreadPoolRepositoryManager$DefaultThreadP
ool$Worker.run(ThreadPoolRepositoryManager.java:693)

Local fix

```
n/a
```

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V7.0, V8.0, and V8.5                 *
****************************************************************
* PROBLEM DESCRIPTION: Users of WebSphere Application Server   *
*                      for z/OS may see a "RuntimeException:   *
*                      Invalid call to WsByteBuffer method.    *
*                      Buffer has already been released" in    *
*                      their joblog.                           *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The following exception may be seen in the application server
joblog,
Exception in thread "ChannelFramework Threadpool : 0"
java.lang.RuntimeException: Invalid call to
WsByteBuffer method. Buffer has already been released
WsByteBuffer: ID: 1
Buffer: java.nio.DirectByteBuffer[pos=0 lim=50 cap=8192]
at com.ibm.ws.buffermgmt.impl.WsByteBufferImpl.checkValidity
(WsByteBufferImpl.java:2109)
at com.ibm.ws.buffermgmt.impl.WsByteBufferImpl.release
(WsByteBufferImpl.java:1959)
at
com.ibm.wsspi.buffermgmt.WsByteBufferUtils.releaseBufferArray
(WsByteBufferUtils.java:262)
at com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.release
Buffers(ZIOPInboundMessageHandler.java:678)
at com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.error
(ZIOPInboundMessageHandler.java:245)
at com.ibm.ws390.channel.ziop.ZIOPInboundMessageHandler.
readComplete(ZIOPInboundMessageHandler.java:311)

Problem conclusion

Code was added to prevent the double-release of the buffer.

APAR PI06031 is currently targeted for inclusion in Fix Pack
7.0.0.33, 8.0.0.10, and 8.5.5.3 of WebSphere Application
Server.

Please refer to the Recommended Updates page for delivery
information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

In addition, please refer to URL:
http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack PTF information.

Temporary fix

Comments

APAR Information

APAR number
PI06031
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-11-12
Closed date
2014-04-28
Last modified date
2015-10-06

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
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R700 PSY UI18561
UP14/06/21 P F406

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022

Tips

PI06031: JAVA.LANG.RUNTIMEEXCEPTION: INVALID CALL TO WSBYTEBUFFER METHOD. BUFFER HAS ALREADY BEEN RELEASED.

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 UI18561

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

Document Information

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