Expressions are in the form of ${key:defaultValue} . If the key is prefixed with sys. a system property is
used. If the key is prefixed with env. an environment variable is used. In all other cases the properties are resolved
from the org.jboss.logging.tools.expressionProperties path. If the key is not found in the properties the default
value will be used.
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Expressions are processed at compile time. The values will be hard-coded in the generated source files. |