IT26390: File InputStreams acquired by the MQ resource adapter are never closed

APAR status

• Closed as program error.

Error description

• A number of Java InputStream objects for files are acquired by
  the MQ JCA resource adapter (MQ-RA) when it is first initialised
  that are not subsequently explicitly closed.  As a result, when
  the MQ-RA is running within the GlassFish application server and
  the server is shutdown, the following warning messages are
  logged to the server.log file:
  
  **************************************************
    Input stream has been finalized or forced closed without being
  explicitly closed; stream instantiation reported in following
  stack trace
  java.lang.Throwable
  	at
  com.sun.enterprise.loader.ASURLClassLoader$SentinelInputStream.<
  init>(ASURLClassLoader.java:1278)
  	at
  com.sun.enterprise.loader.ASURLClassLoader$InternalJarURLConnect
  ion.getInputStream(ASURLClassLoader.java:1386)
  	at java.net.URL.openStream(Unknown Source)
  	at
  com.ibm.msg.client.jms.internal.JMSComponent$1.run(JMSComponent.
  java:87)
  	at
  com.ibm.msg.client.jms.internal.JMSComponent$1.run(JMSComponent.
  java:71)
  	at java.security.AccessController.doPrivileged(Native
  Method)
  	at
  com.ibm.msg.client.jms.internal.JMSComponent.<init>(JMSComponent
  .java:71)
  
  **************************************************
    Input stream has been finalized or forced closed without being
  explicitly closed; stream instantiation reported in following
  stack trace
  java.lang.Throwable
  	at
  com.sun.enterprise.loader.ASURLClassLoader$SentinelInputStream.<
  init>(ASURLClassLoader.java:1278)
  	at
  com.sun.enterprise.loader.ASURLClassLoader$InternalJarURLConnect
  ion.getInputStream(ASURLClassLoader.java:1386)
  	at java.net.URL.openStream(Unknown Source)
  	at
  com.ibm.mq.jms.MQJMSComponent$1.run(MQJMSComponent.java:90)
  	at java.security.AccessController.doPrivileged(Native
  Method)
  	at
  com.ibm.mq.jms.MQJMSComponent.<init>(MQJMSComponent.java:73)
  
  **************************************************
    Input stream has been finalized or forced closed without being
  explicitly closed; stream instantiation reported in following
  stack trace
  java.lang.Throwable
  	at
  com.sun.enterprise.loader.ASURLClassLoader$SentinelInputStream.<
  init>(ASURLClassLoader.java:1278)
  	at
  com.sun.enterprise.loader.ASURLClassLoader$InternalJarURLConnect
  ion.getInputStream(ASURLClassLoader.java:1386)
  	at java.net.URL.openStream(Unknown Source)
  	at
  com.ibm.msg.client.commonservices.j2se.J2SEComponent$1.run(J2SEC
  omponent.java:76)
  	at java.security.AccessController.doPrivileged(Native
  Method)
  	at
  com.ibm.msg.client.commonservices.j2se.J2SEComponent.<init>(J2SE
  Component.java:63)
  	at
  com.ibm.mq.connector.ResourceAdapterImpl.<clinit>(ResourceAdapte
  rImpl.java:180)
  
  **************************************************
    Input stream has been finalized or forced closed without being
  explicitly closed; stream instantiation reported in following
  stack trace
  java.lang.Throwable
  	at
  com.sun.enterprise.loader.ASURLClassLoader$SentinelInputStream.<
  init>(ASURLClassLoader.java:1278)
  	at
  com.sun.enterprise.loader.ASURLClassLoader$InternalJarURLConnect
  ion.getInputStream(ASURLClassLoader.java:1386)
  	at java.net.URL.openStream(Unknown Source)
  	at
  com.ibm.mq.jmqi.internal.JmqiTools$6.run(JmqiTools.java:2229)
  	at java.security.AccessController.doPrivileged(Native
  Method)
  	at
  com.ibm.mq.jmqi.internal.JmqiTools.getVersionProperties(JmqiTool
  s.java:2203)
  	at
  com.ibm.mq.jmqi.JmqiEnvironment.<clinit>(JmqiEnvironment.java:22
  9)
  	at
  com.ibm.mq.jmqi.JmqiFactory.getInstance(JmqiFactory.java:122)
  	at
  com.ibm.mq.internal.MQCommonServices.<clinit>(MQCommonServices.j
  ava:146)
  	at com.ibm.mq.MQSESSION.getJmqiEnv(MQSESSION.java:141)
  	at
  com.ibm.mq.MQSimpleConnectionManager.<init>(MQSimpleConnectionMa
  nager.java:95)
  	at
  com.ibm.mq.MQEnvironment.<clinit>(MQEnvironment.java:569)
  
  **************************************************
    Input stream has been finalized or forced closed without being
  explicitly closed; stream instantiation reported in following
  stack trace
  java.lang.Throwable
      at
  com.sun.enterprise.loader.ASURLClassLoader$SentinelInputStream.<
  init>(ASURLClassLoader.java:1278)
  	at
  com.sun.enterprise.loader.ASURLClassLoader$InternalJarURLConnect
  ion.getInputStream(ASURLClassLoader.java:1386)
  	at java.net.URL.openStream(URL.java:1038)
  	at
  com.ibm.msg.client.commonservices.CommonServices.loadProperties(
  CommonServices.java:656)
  	at
  com.ibm.msg.client.commonservices.CommonServices.getProductizati
  on(CommonServices.java:605)
  	at
  com.ibm.mq.jms.MQJMSComponent$1.run(MQJMSComponent.java:140)
  	at java.security.AccessController.doPrivileged(Native
  Method)
  	at
  com.ibm.mq.jms.MQJMSComponent.<init>(MQJMSComponent.java:73)
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  This issue affects users of the IBM MQ JCA resource adapter, who
  have deployed the IBM MQ resource adapter into GlassFish
  Application Server.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A number of components are initialized when the IBM MQ classes
  for JMS or classes for Java are first used by an application, or
  the IBM MQ JCA resource adapter is initialised by an application
  server. In order to discover the available components, a number
  of properties files located in the IBM MQ classes for Java and
  classes for JMS JAR files are opened, and data is read from
  them.
  
  For each properties file to be read, a Java InputStream object
  was opened. However, the InputStream was not explicitly closed
  after the properties file had been read. When the IBM MQ
  resource adapter was running inside of GlassFish application
  server, this resulted in warning messages being written to the
  application server's log file when the application server was
  shut down.
  

Problem conclusion

• The relevant components of the IBM MQ classes for Java, classes
  for JMS and JCA resource adapter have been updated to explicitly
  call the close() method on InputStreams that are opened when
  reading properties files included within the IBM MQ classes for
  Java and classes for JMS JAR files.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.0 LTS   9.0.0.6
  v9.1 CD    9.1.2
  v9.1 LTS   9.1.0.2
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• 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

  IBM MQ BASE M/P

• Fixed component ID

  5724H7261

Applicable component levels