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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
August 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
- PH72828: CUMULATIVE SECURITY UPDATE 9.4.0.26 FOR THE JMS, MFT, AND WEB UI FEATURES OF IBM MQ FOR Z/OS VERSION 9.4.0. August 27, 2026
- IBM MQ Replicated Data Queue Manager Kernel Modules August 27, 2026
- IBM MQ Tracing User Exit 3.8.2 for Windows 64-bit x86 August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for Linux zSeries August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for Linux PPC64LE August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for AIX 64-bit pSeries August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for Linux x86_64 August 25, 2026
- PH70272: CERTLABL IN CLUSSDR CHANNEL August 24, 2026
- IBM MQ Replicated Data Queue Manager Kernel Modules August 24, 2026
WebSphere MQ- Terms of Use
- IBM MQ Tracing User Exit 3.8.2 for Windows 64-bit x86 August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for Linux zSeries August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for Linux PPC64LE August 25, 2026
- IBM MQ Tracing User Exit 3.8.2 for AIX 64-bit pSeries August 25, 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 7 – Removing effects of the MQ Tracing Exit August 13, 2026
- Formatting MQ SMF records: MQ 10 update July 1, 2026
- New NPM installation policies June 25, 2026
- MQ 10: Application Interfaces June 17, 2026
- EoL: MQ with Spring Boot 3 June 11, 2026
Lyns Random Thoughts
Leif Davidsen’s Blog- Announcing IBM Integration Software Capacity 16.2.1. A simple and non-disruptive next step and new release for Cloud Pak for Integration customers August 25, 2026
- Tactics to Minimize License Costs in Cloud Pak for Integration August 21, 2026
- Pragmatic vs Purist Architecture: Choosing to optimize for elegant integration topology or focusing on licensing-based deployments (and how to balance both) July 2, 2026
- 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
Colin Paice on MQ- Where is my MQ Opentelemetry output from z/SOS? August 26, 2026
- MQ, JMS and Opentelemetry August 25, 2026
- How do I save Grafana dash boards? August 23, 2026
- Opentelemetry: Jaeger handling clock mismatches August 23, 2026
- Understanding Prometheus queries and why they might not work August 13, 2026
- Debugging Prometheus queries August 13, 2026
- Creating the simplest AMS on z/OS configuration. August 6, 2026
- Using System SSL trace to debug AMS problems. August 6, 2026
- What can go wrong when using AMS – how long have you got? August 6, 2026
- Understanding the Prometheus data model August 3, 2026
StackOverflow MQ Questions- What is the recommended way to implement connection pooling with IBM MQ Base Classes when transactions sharing connections across threads? June 11, 2026
- 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
StackOverflow MQTT Questions- How is a highly available SparkPlug Host Application supposed to manage its STATE messages? June 29, 2026
- Mosquitto C - Sending a struct as a payload June 15, 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
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