Friday, August 25, 2023

Modifying the Netcool Remedy 8 gateway for use with Java JDK 8


The Netcool Gateway for Remedy 8 version 1.3 was originally written for Java 6, which used the Rhino JavaScript engine. The Nashorn JavaScript engine in Java 8 (which is automatically installed with an OMNIbus fixpack) is slightly different. Nashorn is so different that the some modifications are required to get the probe to work correctly.

The error you'll see in the gateway log file if you try to run the gateway without these changes is:

Error: [Main Gateway] java.lang.RuntimeException: javax.script.ScriptException: ReferenceError: "importPackage" is not defined in <eval> at line number 1

The issue is basically that Nashorn gives you a new way to create Java objects within JavaScript.

You will need to modify three files to get the Remedy 8 gateway working correctly. Those files are listed here:


In the above two files, you simply need to add this one line at the beginning of each file:


This file requires a bit more customization. Specifically, you replce this line in the update() function definition:

    𝚟𝚊𝚕𝚞𝚎𝚜 = 𝚜𝚘𝚐.𝚗𝚎𝚠𝚛𝚘𝚠();

With these 3 lines:

    //𝚟𝚊𝚕𝚞𝚎𝚜 = 𝚜𝚘𝚐.𝚗𝚎𝚠𝚛𝚘𝚠(); // 𝚓𝚞𝚜𝚝 𝚌𝚘𝚖𝚖𝚎𝚗𝚝𝚒𝚗𝚐 𝚒𝚝 𝚘𝚞𝚝.
𝚟𝚊𝚛 𝚂𝙾𝙶𝚁𝚘𝚠 = 𝙹𝚊𝚟𝚊.𝚝𝚢𝚙𝚎("𝚌𝚘𝚖.𝚒𝚋𝚖.𝚝𝚒𝚟𝚘𝚕𝚒.𝚗𝚎𝚝𝚌𝚘𝚘𝚕.𝚒𝚗𝚝𝚎𝚐𝚛𝚊𝚝𝚒𝚘𝚗𝚜.𝚜𝚘𝚐.𝚂𝙾𝙶𝚁𝚘𝚠");
𝚟𝚊𝚛 𝚟𝚊𝚕𝚞𝚎𝚜 = 𝚗𝚎𝚠 𝚂𝙾𝙶𝚁𝚘𝚠();

Once you make all of the above changes, you need to restart the gateway for the changes to take effect, and it has a better chance of working. I say better chance because you still have to provide all of the correct values for the various properties. But if you're just upgrading your working gateway to OMNIbus 8.1 FixPack 30, then the above changes are what you need.

Friday, August 18, 2023

Updating the bundled Java SDK 8 in WebSphere 8.5.5.x

There are a couple different ways to install Java with WebSphere. The most common way is to simply use the bundled Java SDK. Even with this, sometimes you need to update the Java SDK outside of a Fix Pack. To do that, you need to download an update specifically for the bundled Java SDK. Those can be found here:

You can download the appropriate version, unzip it, add it as a repository to Installation Manager, and then click "Update" to update the WAS bundled JVM.

An example scenario is this:

I have a customer with WAS installed in a secure and regulated environment. They were told they needed to install WAS 8.5.5 FP 23 (FP24 is available, but it has not yet been approved for installation in this environment) and Java WAS comes bundled with Java So we needed to apply the Update via Installation Manager, and then apply the Bundled Java SDK Update via Installation Manager, and all was good.

Thursday, August 17, 2023

Upgrading from IBM Installation Manager 1.8.x to 1.9.x

This is a little tricky because both the documentation and the error message you receive when you try to follow the documentation both lead you in the wrong direction if you currently have IIM installed in "Group mode".

Specifically, the docs tell you to add the new IIM repository.config as a repository to your current IIM 1.8.x installation and to click Update. However, when you do that, it fails and tells you to run the "userinst" command from the new version. This is the correct command to run IF you initially installed IIM in "User mode". But if you originally installed in Group mode, you need to run the "groupinst" command instead.

When you do run "groupinst" (or "userinst" or "install" if you installed it originally in "Admin mode") from the new IIM, you need to make sure to specify the same Data location as you previously used. It will simply use the default value by default, so you need to explicitly state the correct location. ADDITIONALLY, if you specified a custom data location on your original install, you need to copy the InstallationManager.dat file from under that location (run a 'find' to find it) to this location :


This is the default location that IIM looks in for the file. If you don't copy this file over, it will tell you that there's an inconsistency in your install. Here's the error you'll see:

The Installation Manager's registry information is inconsistent with its installation information.

The registry information at "/home/netcool/var/ibm/InstallationManager_Group/etc/.ibm/registry/Installationmanager.dat" indicates that the Installation manager is not installed. however. the information at the "/opt/IBM/InstallationManager/IM/var/ibm/InstallationManager_group" data location indicates that Installation manager 1.8.9 (internal version: 1.8.9000.20180313_1417) is installed at location "/opt/IBM/InstallationManager/IM/InstallationManager_Group/eclipse".

Copy the file over, and you'll no longer get the error.

Also, as a handy piece of information, that file contains the Data Location, specified on the "appDataLocation=" line.