The Spectrum_10.03.02.PTF_10.3.219 patch has shifted the Oracle Java to AdoptOpenJDK in the $SPECROOT/Java/ directory, but the OneClick web server is still distributing the Oracle JRE.
How to install the AdoptOpenJDK JRE instead?
Release: 10.3.x
Component: OneClick
1. Open the following URL: https://adoptopenjdk.net/ and click on "Release Archive & Nightly Builds" item.
2. Locate the jdk8u212-b04 release (that also comes with Spectrum 10.4 release) and click on JRE to download the installer file for Windows x64.
3. Install the AdoptOpenJDK JRE.
4. In Custom Setup set to install all components.
5. Click on Start Console to launch the OneClick Console.
6. The following window will be displayed.
7. Click on Run button.
8. Click on Yes button.
9. Click on Run button.
10. Supply the Username and Password.
If the three item are not installed, then you have to manually associated the .jnlp file with Java Web Start.
The file that launches OneClick is a JNLP file. Verify that the .jnlp file extension is mapped to the javaws.exe application.
Follow these steps: