Download the latest JDK 11 for your operating system from Oracle's web site.

Next, follow the steps below to replace the current JDK 11 in TDV 8.2 or 8.3 with the downloaded JDK.

For purposes of illustration, let us assume that the current version is 11.0.3:

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C:\apps\tdv82\jdk\bin\java -version

java version "11.0.3" 2019-04-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.3+12-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.3+12-LTS, mixed mode)
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And that we are switching this to 11.0.9.

1.  Take a Full server backup car as a safeguard.

2.  Shut down TDV server, cache, repository, and Studio.

3.  Rename the existing JDK folder. For example, rename:
           <TDV_install_dir>\jdk
To:
           <TDV_install_dir>\jdk_ORIG

4.  Install JDK 11.0.9 as a folder under <TDV_install_dir> and ensure that the folder name is :
           <TDV_install_dir>\jdk
i.e. it should not be something different, such as:
           <TDV_install_dir\>jdk11

5.  Restart the TDV instance (TDV server, repo, cache and Studio).

6.  Verify that the correct JDK is being used by looking in the cs_server.log for a line of this type: 

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INFO [main] 2021-01-11 16:50:49.656 -0800 BasicServicesModule - JRE Version=11.0.9
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How to switch the JDK 11 in TIBCO Data Virtualization 8.2 (or 8.3) to a higher JDK 11