Author Archives: Roger Lacroix

My name is Roger Lacroix and I am a die hard programmer. I have been programming since the 80s. My favorite programming languages are Java, C and Rexx. I have worked in the Airline, Retail but I have spent most of my time doing middleware work in the financial services industry. In 1994, I was introduced to IBM MQ (aka WebSphere MQ & MQSeries) and I thought it was the next best thing since man created fire. This blog will be about IBM MQ, Java, C, Rexx and any other interesting items that I can think of. I hope you enjoy it.

memmem() Function for a C Program

March 17, 2020 Roger Lacroix
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Last week, I needed a function for a C program that would search a string not null terminated for a string not null terminated. Hence, I could not use strstr() function because it requires the strings to be null terminated. So, I checked my trusty C Runtime Library Reference and found nothing that matched. Now […]

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Working from Home and Coronavirus aka COVID-19

March 16, 2020 Roger Lacroix
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It is funny that everyone is freaking out about working from home. I always found I got less done at the office than at home because I was always being interrupted every 2 minutes. For most of my career, I have worked part-time at home. In 2001, I incorporated Capitalware and went out on my […]

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IBM MQ Fix Pack 9.0.0.9 Released

March 11, 2020 Roger Lacroix
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IBM has just released Fix Pack 9.0.0.9 for IBM MQ V9.0 LTS https://www.ibm.com/support/pages/node/3255381?myns=swgws&mynp=OCSSYHRD Regards, Roger Lacroix Capitalware Inc.

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IBM Integration Technical Conference 2020

March 5, 2020 Roger Lacroix
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After I received David La Rose of IBM’s email, I replied asking about the IBM Integration Technical Conference 2020 and I copied Ray Daniel of IBM on the email. Ray Daniel replied with an official statement of: Thank you for your interest in the Integration Technical Conference 2020 on March 16-19. Due to participant travel […]

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IBM Think 2020

March 5, 2020 Roger Lacroix
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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 […]

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Java’s Missing Byte Array Class

February 19, 2020 Roger Lacroix
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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 […]

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Updated Request & Reply JMS/MQRFH2 Messaging Scenario

February 3, 2020 Roger Lacroix
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The person on StackOverflow made a comment that I was using a static string as my reply message. Humm. Some times people cannot see the forest for the trees. So, I have updated my sample Java/MQ (i.e. MQTest77.java) in this posting to do the following: Connect to a remote queue manager Open an input queue, […]

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Inhibit/Allow the Get & Put Actions of a Queue

January 31, 2020 Roger Lacroix
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On StackOverflow, someone asked a question about inhibiting get actions against a queue. Here is a simple Java/MQ program that will set inhibit or allow for the GET and PUT attributes of a queue. You can download the source code from here. Regards, Roger Lacroix Capitalware Inc.

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Request & Reply JMS/MQRFH2 Messaging Scenario

January 31, 2020 Roger Lacroix
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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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IBM announces WebSphere MQ V5.3.1 Fix Pack 16 for HPE NonStop

January 30, 2020 Roger Lacroix
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IBM has just released Fix Pack 5.3.1.16 for WebSphere MQ for HPE NonStop: https://www.ibm.com/support/docview.wss?uid=swg1IT29752 Regards, Roger Lacroix Capitalware Inc.

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