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Recent Posts
- IBM MQ 9.3 End of Service Date
- IBM has announced IBM MQ 10.0
- IBM MQ 9.4.5 Announced
- IBM Champion Renewal Declined
- Capitalware Products & Older Versions of the Products
- Merry Christmas and Happy New Year
- MQ Visual Edit V3.3.0 Released
- MQ Visual Browse V3.3.0 Released
- MQ Batch Toolkit v3.2.3 Released
- MQTT Message Editing Suite V1.2.0 Released
- New: Universal File Mover v2.0.1
- Java/MQ GUI Program to Monitor a Queue
Blog Calendar
May 2026 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Archives
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IBM MQ- Terms of Use
- IBM MQ Replicated Data Queue Manager Kernel Modules May 22, 2026
- IBM MQ Replicated Data Queue Manager Kernel Modules May 21, 2026
- PH71319: THIS IS AN ADMINISTRATIVE APAR TO REPACKAGE THE FIX FOR PH70905. May 18, 2026
- PH70409: ABN=0C4-00000004,LOC=CSQPLPLM.CSQPRAH2+OFFSET AND ABN=5C6-00D70120,U=XXXXX ,C=MQ900.940.BUFF-CSQP3GET,M=CSQGFRCV,LOC=CSQPLPLM. May 15, 2026
- PH67399: ABN=5C6-00E50001,U=XXXXXXXX,C=MQ900.930.DMC -CSQILOC2,M=CSQGFRCV,LOC=CSQILPLM.CSQILOC2+OFFSET May 15, 2026
- PH64495: MQ Z/OS: HIGH LOCAL LOCK CONTENTION FOR THE CHIN JOB May 15, 2026
- PH67368: OUTBOUND SHARED CHANNEL RECOVERY DOES NOT COMPLETE May 14, 2026
- PH69257: CSQ5PQSG UTILITY MIGRATION CHECK May 13, 2026
- IBM MQ Replicated Data Queue Manager Kernel Modules May 13, 2026
WebSphere MQ- Terms of Use
- Cumulative security update (CSU) 9.1.0.36 for IBM MQ on Solaris 64-bit,x86 May 7, 2026
- Cumulative security update (CSU) 9.1.0.36 for IBM MQ on Linux 64-bit,zSeries May 7, 2026
- Cumulative security update (CSU) 9.1.0.36 for IBM MQ on Linux 64-bit,x86_64 May 7, 2026
- Cumulative security update (CSU) 9.1.0.36 for IBM MQ on AIX 64-bit, pSeries May 7, 2026
IBM Developer Messaging Blog
T.Rob’s Store and Forward- MQ Safety Tips for the Pandemic April 5, 2020
- Command Server Gotcha May 14, 2018
- Client-based runmqsc gotcha May 3, 2018
- When deprecated != deprecated January 19, 2018
- Parsing MQ error logs in Splunk December 19, 2017
Mark Taylor’s Blog- OTel Context Propagation: part 6 – MQ Kafka Connectors May 11, 2026
- OTel Context Propagation: part 5 – Notes on the MQ Tracing Exit March 4, 2026
- OTel Context Propagation for MQ Applications: part 4 – Python February 6, 2026
- End of a platform January 8, 2026
- MQ Monitoring: using queue manager STATISTICS events December 22, 2025
Lyns Random Thoughts
Leif Davidsen’s Blog- What’s New in IBM Cloud Pak for Integration 16.2.0? A Long-Term Support Release enhanced with agentic AI assistance, new capabilities in Unified Management and support for federated API gateways. May 6, 2026
- Designing for Resilience and Cost: Making smart licensing choices that keep your CP4I deployments both reliable and affordable April 17, 2026
- Container licensing deep dive: Making the most of your IBM Cloud Pak for Integration entitlements April 2, 2026
- Doing More for Less: How Cloud Pak for Integration Licensing gives you Integration Superpowers March 17, 2026
- Transform your business productivity with AI Agents for IBM Cloud Pak for Integration. GA on March 25th, 2026 February 19, 2026
Colin Paice on MQ- Formatting a spread sheet column so it spans multiple columns. May 18, 2026
- Using an external function May 17, 2026
- Sharing status information between functions. May 16, 2026
- Binding in Unix on z/OS. A whole new world May 15, 2026
- Assembler programming without using using – it is all relative May 3, 2026
- Using IPCS to look at z/OS dumps May 3, 2026
- Not for humans but for search engine – BPX May 2, 2026
- Where’s my dump? May 2, 2026
- Processing LOGREC May 2, 2026
- Getting the z/OS standard image to work. April 27, 2026
StackOverflow MQ Questions- Does every MQQueueManager create a new TCP/IP connection? Best practices for connection reuse/pooling in IBM MQ Java client May 4, 2026
- IBM MQ: CONNS and CURSHCNV show same value despite multiple JMS sessions [closed] April 30, 2026
- MQCONNX ended with reason code 2393 when connecting mTLS enabled queue April 9, 2026
- how to rectify javax.jms.JMSException: Failed to create connection? January 16, 2026
- IBM MQ 2059 (MQRC_Q_MGR_NOT_AVAILABLE) error in .NET 9.0 console app using IBMMQClient with certificate-based SSL setup January 14, 2026
- Azure linux function app to IBM MQ using IBMMQDotnetClient 9.4.2 December 6, 2025
- App need to perform enable/disable queue programmatically December 4, 2025
- Date & time not being shown in japanese October 28, 2025
- How do I / example of adding source info in IBM MQ Header (possible MQRFH2/usr) from DB2 stored procedure October 14, 2025
- Is Q Replication what's called Fast Queue in database async replication October 6, 2025
StackOverflow MQTT Questions- MQTT connection silently drops on NTP clock jump in embedded Linux (no error, no reconnect) April 9, 2026
- How to create "restricted wildcard subscriptions" March 26, 2026
- (Ab)using ASP.NET Core for non-http message processing? February 12, 2026
- Am I misusing Azure Event Grid’s MQTT multi‑session support by connecting 100 MQTT clients to a single defined MQTT client in Event Grid? February 4, 2026
- android compose mqtt implementation January 26, 2026
- Don't get publish() to work in paho.mqtt.client.on_connect thread January 18, 2026
- Best way to host multiple EMQX instances per server January 15, 2026
- How can I connect to AWS IoT Core MQTT over WebSocket from browser January 9, 2026
- paho Android MQTT client does not send PINGREQ to broker when phone screen is off December 2, 2025
- Prevent multiple subscriptions of same topic in HiveMQ MQTT client November 17, 2025
Archive for the Category: JMS
Capitalware’s MQ Technical Conference v2.0.1.4
Capitalware would like to announce MQ Technical Conference v2.0.1.4 (MQTC). MQTC is an event that will educate attendees on current practices, methodologies, administration, problem determination, security best practices and technology trends for IBM’s WebSphere MQ. MQTC will offer 70 sessions that are designed to enhance the skills of IT professionals who are using IBM’s WebSphere […]
Also posted in Capitalware, Education, IBM i (OS/400), IBM MQ, Java, Linux, macOS (Mac OS X), Mobile, MQ Technical Conference, Programming, Security, Unix, Windows, z/OS Comments Off on Capitalware’s MQ Technical Conference v2.0.1.4
MQAUSX Client-side Java Bug
The following was recently reported: For WebSphere Message Broker Toolkit, when the user inputs an incorrect password, the exit rejects the connection (as expected). If you try and connect again, you do not get a pop up prompting you for a new password attempt and the exit immediately ends the connection attempt. If a user […]
Also posted in Capitalware, IBM i (OS/400), IBM MQ, Java, Linux, MQ Authenticate User Security Exit, Security, Unix, Windows Comments Off on MQAUSX Client-side Java Bug
Capitalware’s MQ Technical Conference v2.0.1.3
Capitalware would like to announce a new 3-day MQ Technical Conference v2.0.1.3 (MQTC). MQTC is an event that will educate attendees on current practices, methodologies, administration, problem determination, security best practices and technology trends for IBM’s WebSphere MQ. MQTC will offer over 40 sessions that are designed to enhance the skills of IT professionals who […]
Also posted in C, Capitalware, Education, IBM i (OS/400), IBM MQ, Java, Linux, macOS (Mac OS X), Mobile, MQ Technical Conference, Programming, Unix, Windows, z/OS Comments Off on Capitalware’s MQ Technical Conference v2.0.1.3
WMQ v7.1 and v7.5 manuals as PDFs
After a nice community push for RFE # 21041, IBM has made available WebSphere MQ v7.1 and v7.5 manuals as PDFs. 🙂 WebSphere MQ 7.1 PDFs: http://pic.dhe.ibm.com/infocenter/wmqv7/v7r1/topic/com.ibm.mq.doc/zo00170_.htm WebSphere MQ 7.5 PDFs: http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/topic/com.ibm.mq.doc/zo00170_.htm Regards, Roger Lacroix Capitalware Inc.
Also posted in IBM i (OS/400), IBM MQ, Java, Linux, Programming, Unix, Windows, z/OS Comments Off on WMQ v7.1 and v7.5 manuals as PDFs
JBoss and Strange Looking Characters in the Message Data
Here’s an interesting issue that Lawrence Coombs had regarding porting a J2EE application from WAS to JBoss: We ported an applictaion from WAS to jboss 5.1. It interfaces with a mainframe CICS transcation that uses MQ 7.x. Neither the distributed nor the Z/OS queue manager changed. The CCSID of the Z/OS queue manager is 500 […]
WMQ v7.0.1.8 Java/JMS Application Leaks Connections
IBM has the following APAR IC79103 for the fix: http://www.ibm.com/support/docview.wss?uid=swg1IV18624 Error Description: Applications using the WebSphere MQ classes for Java Version 7.0.1.8 repeatedly reconnect and finally consume all the available connections of the queue manager. Traces show repeated occurrences of completion code “2” and reason code “2009”, and internal exceptions are traced out containing the […]
Also posted in IBM i (OS/400), IBM MQ, Java, Linux, Programming, Unix, Windows, z/OS Comments Off on WMQ v7.0.1.8 Java/JMS Application Leaks Connections
ActiveMQ 5.6.0 Released
Apache ActiveMQ Project has just released ActiveMQ v5.6.0. http://activemq.apache.org/activemq-560-release.html Apache ActiveMQ is the most popular and powerful open source messaging and Integration Patterns server. Apache ActiveMQ is fast, supports many Cross Language Clients and Protocols, comes with easy to use Enterprise Integration Patterns and many advanced features while fully supporting JMS 1.1 and J2EE 1.4. […]
WebSphere MQ Redbooks
IBM has several Redbooks that provide in-depth details for WebSphere MQ. Here are 5 MQ related Redbooks that I have found: WebSphere MQ V7.0 Features and Enhancements WebSphere MQ V6 Fundamentals WebSphere MQ V6, WebSphere Message Broker V6 and SSL WebSphere Application Server V6.1: JMS Problem Determination WebSphere MQ Solutions in a Microsoft .NET Environment […]
WebSphere MQ v7.1 and Java v1.4.2
Here’s another head-banging item that some people may get burnt by. I was doing some testing of Java applications with WebSphere MQ v7.1 and received the following error message: If you do not know what “Unsupported major.minor version 49.0” means, in plain English, it means that the MQ Java JAR file you are using was […]
Also posted in IBM i (OS/400), IBM MQ, Java, Linux, Unix, Windows, z/OS 2 Comments
WMQ v7 Java applications and JMS messages (MQRFH2)
I have been banging my head against the wall this week over weird things in WMQ v7, so I figured I would post this so that people in the future would have less of a headache. A year or so ago, I noticed some odd behavior in WMQ v7 with Java applications reading messages with […]
Also posted in IBM i (OS/400), IBM MQ, Java, Linux, Programming, Unix, Windows, z/OS 4 Comments