Running Mulesoft AnyPoint Studio on MacOS with homebrew

I’m using homebrew to manage many of the addons I use on my Mac. I had openjdk 12.0 installed previously but needed OpenJDK 1.8 to run Mulesoft AnyPoint Studio 7.4. Making that work I had to install OpenJDK 1.8 from adoptopenjdk ( using homebrew and then tweak the ini-file controlling the AnyPoint Studio which is Eclipse based.

I started by downloading and installing Mulesoft AnyPoint Studio from Mulesoft. Then I installed openjdk 1.8 using homebrew.

brew tap AdoptOpenJDK/openjdk
brew cask install adoptopenjdk8

OpenJDK 1.8 was installed to /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk and the Java Runtime Environment could be found in /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/jre. Making sure it works is always a good idea.

/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/jre/bin/java -version

Now edit the AnypointStudio.ini for and specify the Java Runtime to use using the -vm switch (in bold).


Simple speedtest app deployed using heroku

My parents mobile broadband connection in their summer house seemed a little flaky and my father asked me how we could monitor it. Easy I thought. I would simply grab a Raspberry pi and one of the available tools so I googled and found a nice tutorial. Getting it to work was easy enough but after having this run for a few days the results were weird and didn’t match what we saw while there. So what do any self-respecting programmer do? Write his/her own of course… 🙂

So I broke out my language of choice (Java) and wrote a simple servlet I could use using curl. The servlet responds to GET and POST requests and hence allows me to measure download and upload speed. Using curl it was very easy to capture the connection time and the actual time to do the operation. Putting it all together using cron allowed me to run it on schedule and pipe the result to CSV files for later analysis.

Now I needed a place to run the app – the obvious choice was a free dyno on Heroku. To deploy I simply created an app, set two configuration parameters and then pushed using Git which in turn built, deployed and ran the application. So easy. And all using command line.

Next steps? Send the results to a Google spreadsheet using IFTTT to allow my dad to get the data himself and analyse to his hearts content…

The application is available at and the README explains the whole heroku deployment process.

Developing plugins for IBM Notes on Mac

I’ve been developing plugins for IBM Notes on Mac for years now but never really got around to sharing the steps on the blog. The below steps – in very crude form – works with Java 8 on Mac OS El Capitan (v. 10.11) using IBM Notes 9.0.1. The below sections are additions to the regular steps on creating a target platform documented otherwise on this blog


Run a product:

Execution Envionment: JavaSE-1.6


Program arguments:

-ws cocoa

VM Arguments:



  • DYLD_LIBRARY_PATH=/Applications/IBM
  • NOTESBIN=/Applications/IBM

Developing code using IBM Notes in Eclipse on Mac OS

I’m cleaning out my drafts folder and stumbled unto this one I never posted. The steps has changed slightly after IBM Notes 9.0.1 for Mac was released as that release works fine with the never JVM’s for the Mac. Actually there are very few steps you need to do to make the code work. To complete a standard console app that prints the username from the current session to stdout do the following:

  1. Write the code – could be something like this:
    import lotus.domino.NotesFactory;
    import lotus.domino.Session;
    import lotus.notes.NotesThread;
    public class Main {
       public static void main(String[] args) throws Exception {
          Session session = NotesFactory.createSession();
  2. Run the code as a Java Application. This will fail as the JVM cannot load the required libraries.
  3. Edit the Run Configuration (click the dropdown next to the green run button and choose “Run Configurations…”)
  4. Switch to the “Environment”-tab
  5. Add an environment variable called DYLD_LIBRARY_PATH with a value of “/Applications/IBM” (without the quotes)
  6. Click Apply and Run

This was done in Eclipse neon on Mac OS El Capitan (10.11) using Java 8.

Simple tool to save certificate chain certificates as PEM files

It’s been increasingly frustrating to support our OnTime Group Calendar for Microsoft customers with on-prem Exchange as they usually use a self-signed certificate for TLS resulting in Java throwing a fit. Getting the certificate chain using a browser or OpenSSL is easy enough but for some customers that still prove too difficult. I couldn’t find a tool to automate the export so I wrote a small tool in Java. The tool simply takes the address of the site to contact and saves the certificate chain as individual PEM files ready for import into the Java keystore. Now there is no fingerprint check so use at your own risk. Using the tool is like so:

java Main

The code is available on Github and doubles as an example of how to accept all certificates using a custom TrustManager and HostNameVerifier. I even threw in some Java 8 to make Rene happy 😦


Test agents in Eclipse by extending AgentBase

I continuously get questions on how I do Java agent development and I’m happy to answer them as I hope that some of the answers I provide means that more and more Domino developers see Java as a strong alternative to LotusScript for background processing. Most times the approach I recommend is a mock object approach that I wrote about waaaaaay back in 2006 (did I really write that 10 years ago?!?!?).

If / when you want to read the posts please start from part no. 1. Here’s a link to all 5 parts:

The approach doesn’t handle importing the code back into Domino Designer but it does allow you to “mock” the Notes side of the API and allows you to write, test and debug your agents in Eclipse. Then when they’re completely done you can import it back into Notes without any changes. This is the approach I would choose and that I still use when writing Java agents here 10 years later.

Hope this helps but if it doesn’t please let me know.

Mac Yosemite, Java, IBM Notes and OnTime Group Calendar

After upgrading my Mac to OS X Yosemite (10.10) I had to reinstall Java to make IBM Notes startup just like Rene describes. To install go to the download page for Java on, download and install. It takes around 5 minutes and you are ready to go. Once installed the Java runtime makes IBM Notes fly again and I can confirm that the OnTime Group Calendar UI’s run just fine on OS X Yosemite.