Usage of default value in ${...} enclosure

tlappe · hmlnarik · commit fc901a635960 · 2023-03-10T09:48:28.000+01:00
Replaces #1132
diff --git a/securing_apps/topics/oidc/java/java-adapter-config.adoc b/securing_apps/topics/oidc/java/java-adapter-config.adoc
@@ -47,7 +47,7 @@ This is what one might look like:
 ----
 
 You can use `${...}` enclosure for system property replacement. For example `${jboss.server.config.dir}` would be replaced by `/path/to/{project_name}`.
-Replacement of environment variables is also supported via the `env` prefix, for example `${env.MY_ENVIRONMENT_VARIABLE}`.
+Replacement of environment variables is also supported via the `env` prefix, for example `${env.MY_ENVIRONMENT_VARIABLE}`. You can also define a default value `${...:default_value}`, which is used if the system property `${jboss.server.config.dir:default_value}` or the environment variable `${env.MY_ENVIRONMENT_VARIABLE:default_value}` is absent.
 
 The initial config file can be obtained from the admin console. This can be done by opening the admin console, select `Clients` from the menu and clicking
 on the corresponding client. Once the page for the client is opened click on the `Installation` tab and select `Keycloak OIDC JSON`.
