Cisco ASDM OpenJDK edition, ASDM-IDM Launcher and Azul Zulu JRE 8

Since Cisco ASDM 7.18(1) support Java 1.8 (Version 8) only. You need to install Azul Zulu JRE 8 on your machine.

Using JRE version 1.8.0_412 OpenJDK 64-Bit Server VM

User home directory = 

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c:   clear console window

f:   finalize objects on finalization queue

g:   garbage collect

h:   display this help message

m:   print memory usage

q:   hide console

s:   dump system properties

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Application Logging Started at 

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Local Launcher Version = 1.9.7

Local Launcher Version Display = 1.9(7)

Cisco ASDM OpenJDK edition, ASDM-IDM Launcher and Azul Zulu JRE 8

Oracle JRE and JDK replacement

Azul Zulu OpenJDK 11 is a good choice.
If your computer does not have any existing Java SE installed, it is suggested that you can download and install Azul Zulu OpenJDK 11 from the Zulu Community 
Java 8, 11, 17, 21, 22 Download for Linux, Windows and macOS (azul.com)

Oracle JRE and JDK replacement

自動部署安裝 Java Runtime Environment (JRE)

http://www.wretch.cc/blog/josephphoto/16179792

自動部署安裝 Java Runtime Environment (JRE)

FREEWARE: JavaRa – Remove redundant versions of the Java Runtime Environment (JRE)

http://raproducts.org/javara.html

FREEWARE: JavaRa – Remove redundant versions of the Java Runtime Environment (JRE)