Archive for the Category: JMS

Java Method to Output a Byte Array in HEX Dump Format

October 6, 2020 Roger Lacroix

On StackOverflow, I posted code to output a byte array in a HEX dump format. I thought I should post the code here as a complete working sample. You can download the source code from here. You can copy the 2 methods (dumpBuffer & formatHex) to your general purpose toolkit and use them in any […]

Also posted in HPE NonStop, IBM i (OS/400), Java, Linux, macOS (Mac OS X), Open Source, Programming, Raspberry Pi, Unix, Windows 2 Comments

Redbooks on IBM MQ

July 24, 2020 Roger Lacroix

I have created a new section on Capitalware’s IBM MQ Documentation Library page called Redbooks on IBM MQ. I searched the internet and IBM’s Redbook site and found 20 redbooks on the subject of IBM MQ (formally WebSphere MQ, MQSeries). I have listed them in chronologically order. Note: Some of them may be old but […]

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AdoptOpenJDK to join the Eclipse Foundation

July 2, 2020 Roger Lacroix

AdoptOpenJDK project is moving to the Eclipse Foundation. https://blog.adoptopenjdk.net/2020/06/adoptopenjdk-to-join-the-eclipse-foundation/ The new Eclipse project name will be Eclipse Adoptium. Regards, Roger Lacroix Capitalware Inc.

Also posted in Java, Linux, macOS (Mac OS X), Open Source, Programming, Unix, Windows 3 Comments

IBM MQ information from IBM Developer

July 2, 2020 Roger Lacroix

Here is some IBM MQ information from IBM Developer that you might find interesting: Article: Improving your IBM MQ applications Article: IBM MQ cheat sheet for developers Article: IBM MQ Downloads for developers Tutorial: Writing and running MQ applications on your Mac Tutorial: Secure communication between IBM MQ endpoints with TLS Regards, Roger Lacroix Capitalware […]

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Working from Home – Open Source Software

March 19, 2020 Roger Lacroix

The other day I wrote about working from home, since I recently upgraded both my desktop and laptop to Windows 10 64-bit, I thought I should review/list the open source software I use to get the job done. You don’t need to go broke setting up your PC/laptop with software. Here is a list of […]

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IBM Think 2020

March 5, 2020 Roger Lacroix

I just received the following email from David La Rose of IBM saying that IBM Think 2020 has been cancelled and turn into a virtual event. Here is what email said: The health of IBM’s clients, employees and business partners is our primary concern. In light of global precautions for the COVID-19 Coronavirus, and building […]

Also posted in .NET, C, C#, C++, Education, IBM i (OS/400), IBM MQ, Java, Linux, Programming, Security, Unix, Windows, z/OS Comments Off on IBM Think 2020

Java’s Missing Byte Array Class

February 19, 2020 Roger Lacroix

After 25 years, it is still surprising that Java doesn’t have a proper byte array class. There can be many reasons that the data a Java program needs to work with is in a byte array. It could be the contents of a file or MQTT message or IBM MQ message, etc. Since there is […]

Also posted in HPE NonStop, IBM i (OS/400), Java, Linux, macOS (Mac OS X), Open Source, Programming, Raspberry Pi, Unix, Windows, z/OS 3 Comments

Request & Reply JMS/MQRFH2 Messaging Scenario

January 31, 2020 Roger Lacroix

Sometimes people over think a problem and write a complicated solution when really the solution is no different than any other Request/Reply scenario (use case). On StackOverflow, someone asked a question about sending a reply JMS/MQRFH2 message using the RFH2 header and folder values from the original request message. The code will copy the RFH2 […]

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JMS/MQRFH2 Message Properties in “other” Folder

January 17, 2020 Roger Lacroix

On StackOverflow, someone asked about having an “other” folder (not “usr”) with an MQRFH2 (aka JMS) message. That day, I played around with a MQ/Java program that created various folders in an MQRFH2 message. i.e. When I ran a MQ/JMS program to retrieve the messages, the MQ/JMS programs simply ignore all folders outside of ‘mcd’, […]

Also posted in C, IBM i (OS/400), IBM MQ, Java, Linux, macOS (Mac OS X), Programming, Unix, Windows, z/OS Comments Off on JMS/MQRFH2 Message Properties in “other” Folder

MQ Internals Explained (a little bit)

December 10, 2019 Roger Lacroix

IBM likes to market IBM MQ (aka WebSphere MQ, MQSeries) as a simple and complete solution for business’s messaging needs. Going with the KISS approach is wise (very wise in some cases). IBM talks about the 2 different messaging models that IBM MQ supports: Point-to-Point (P2P) and Publish/Subscribe (Pub/Sub). IBM will: show you how to […]

Also posted in .NET, Assembler, C, C#, C++, HPE NonStop, IBM i (OS/400), IBM MQ, Java, Linux, macOS (Mac OS X), MQ Auditor, MQ Message Encryption, Programming, Unix, Windows, z/OS 2 Comments