Create a Custom Detection Script for Java 9 Runtime Environment (PowerShell)


Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM) and Microsoft Intune use Detection Rules to determine the presence of Applications & Win32 Apps. The detection rules ensure that application installations only begin to run if the application is not already installed on the device. This article will serve as an informative guide and give you a clear understanding of how to create an updated custom detection script for each new version of the Java 9 Runtime Environment using PowerShell.

How to Create a Custom Detection Script for the Java 9 Runtime Environment

Java 9 Runtime Environment (Registry Detection Method)

  • Install the version of Java 9 Runtime Environment you want to deploy on a test box or VM
  • Open Windows PowerShell ISE by Right-Clicking on Windows PowerShell ISE and selecting Run as Administrator
  • Copy the following code into the Windows PowerShell ISE
## Check for Java 9 Runtime Environment (Registry Detection Method)
$Java = Get-ChildItem -Path "HKLM:\SOFTWARE\Classes\Installer\Products" -ErrorAction SilentlyContinue | Get-ItemProperty | Where-Object {$_.ProductName -like 'Java 9*' } | Select-Object -Property ProductName, PSChildName
$Java.ProductName
$Java.PSChildName

## Create Text File with Java 9 Runtime Environment Registry Detection Method
If(Test-Path "HKLM:\SOFTWARE\Classes\Installer\Products\$($Java.PSChildName)") { 

$FilePath = "C:\Windows\Temp\Java_9_JRE_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "If((Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Classes\Installer\Products\$($Java.PSChildName)' -Name ProductName -ea SilentlyContinue) -eq '$($Java.ProductName)') {"
Add-Content -Path "$FilePath" -Value "Write-Host `"Installed`""
Add-Content -Path "$FilePath" -Value "}"
Invoke-Item $FilePath 
}
  • Click Run Script (F5)
  • A text file will open with the Java 9 Runtime Environment Detection Method script required to detect the current version of Java 9 Runtime Environment that is installed on the device you are running the script from.

Example:

If((Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Classes\Installer\Products\1193A58806702525292C00B12999D7AE' -Name ProductName -ea SilentlyContinue) -eq 'Java 9.0.4 (64-bit)') {
Write-Host "Installed"
}
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Always make sure to test everything in a development environment prior to implementing anything into production. The information in this article is provided “As Is” without warranty of any kind.

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