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Windows

Install new Java version

Follow instructions to install Java: Install Java

Update JAVA_HOME

If you have set the environment variable JAVA_HOME, check whether this needs updating.

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On windows, check the system environment variables to see if JAVA_HOME is set, and if it needs updating to the new base installation of Java, do so

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Commonly this will be automatically updated by the installation process.

Update service wrapper

Find the file jvm.dll in the Java installation.

• Java 8: this will be in JAVA_HOME\jre\bin\server\jvm.dll

• Java 11: this will be at JAVA_HOME\bin\server\jvm.dll

Open the tomcat configuration window:

• Start the program Monitor Tomcat

If this is not available from the start menu, run the program JAVA_HOME\bin\Tomcat9w.exe

./jdk-11.0.13.8-hotspot/bin/client/jvm.dll
./jdk-11.0.13.8-hotspot/bin/server/jvm.dll
./jdk-8.0.312.7-hotspot/jre/bin/server/jvm.dl

Remove old version

Linux

Install new Java version

Follow instructions to install Java: Install Java

Update JAVA_HOME

If you have followed the standard installation instructions, you have already done this.

Update service script

cwelford@PF-000151:/mnt/c/Program Files/Eclipse Adoptium$ find . -name jvm.dll -print
./jdk-11.0.13.8-hotspot/bin/client/jvm.dll
./jdk-11.0.13.8-hotspot/bin/server/jvm.dll
./jdk-8.0.312.7-hotspot/jre/bin/server/jvm.dl

Unix: update-alternatives?

Remove old version

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Linux

delete install:Delete the previous installation

Code Block
cd /opt/jdk

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sudo rm -r [PREVIOUS VERSION]

For example

Code Block
sudo

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rm -

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r

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/opt/jdk/

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jdk-11.0.13+8