If you want to migrate a plugin to GeoMedia Smart Client 2018 Update 4 or later, please follow the migration steps of 2018 Update 3 first. For more information see Migration Steps for GMSC 2018 Update 3.
GeoMedia Smart Client 2018 Update 4 or later updates the used OpenJDK and OpenJFX version to 12 or later. The detailed version info of the used OpenJDK is:
openjdk version "12" 2019-03-19 OpenJDK Runtime Environment (build 12+33) OpenJDK 64-Bit Server VM (build 12+33, mixed mode, sharing)
Therefore please ensure that your plugin doesn't use any Java API which is was marked as deprecated for removal of Java 11.
You will find a list of all items at the following page:
Once you have completed this step, please create a new signed jar of your plugin by using the latest OpenJDK 12 build from http://jdk.java.net/12/.
The signed jar and all the signed dependencies of your plugin must be copied to the plugins directory of your GeoMedia Smart Client installation:
[GMSC_INSTALL]/Program/plugins
All the *.jar files of this directory will be added to the classpath of GeoMedia Smart Client if the client accepted your certificate at the App Launchers confirmation dialog.
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